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This section includes 200950 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 2051. |
Which of the following expressions is that of a simple harmonic progressive wave? |
| A. | a sin wt |
| B. | a sin (wt) cos (kx) |
| C. | a sin (wt - kx) |
| D. | a cos kx |
| Answer» D. a cos kx | |
| 2052. |
The velocity of sound is measured in hydrogen and oxygen at a certain temperature. The ratio of the velocities is? |
| A. | 1:1 |
| B. | 1:2 |
| C. | 1:4 |
| D. | 4:1 |
| Answer» E. | |
| 2053. |
The speed of sound in air at N.T.P. is 300 m/s. If air pressure becomes four times, then the speed of sound will be? |
| A. | 150 m/s |
| B. | 300 m/s |
| C. | 600 m/s |
| D. | 1200 m/s |
| Answer» C. 600 m/s | |
| 2054. |
Find the income per cent on 10% debentures of par values Rs. 120 available in the market for Rs. 150? |
| A. | 9% |
| B. | 7% |
| C. | 8% |
| D. | 6% |
| Answer» D. 6% | |
| 2055. |
A invested some money in 10% stock at 96. If B want to invest in an equally good 12% stock, he must purchase a stock worth of? |
| A. | Rs. 80 |
| B. | Rs. 120 |
| C. | Rs. 115.20 |
| D. | Rs. 125.40 |
| Answer» D. Rs. 125.40 | |
| 2056. |
Meena bought Rs. 36000 of 15/2%. stock at 92 and sold it when its price rose to Rs. 933/4%. Find her gain percent? |
| A. | 1.9% |
| B. | 2.3% |
| C. | 2.9% |
| D. | 1.4% |
| Answer» B. 2.3% | |
| 2057. |
Find the rate of dividend paid by the company,If the total divided declared by the company is Rs. 62500, a company issued 50000 shares of par value Rs. 10 each? |
| A. | 17/2% |
| B. | 12% |
| C. | 25/2% |
| D. | 55/4% |
| Answer» D. 55/4% | |
| 2058. |
A man sells 5000 common shares of a Company x (each of par value Rs. 10), which pays a dividend of 20% at Rs. 30 per share. He invests the sale proceeds in ordinary shares of Company Y (each of par value Rs. 25) that pays a dividend of 15%. If the market value of Company Y is Rs. 40, find the number of shares of Company Y purchased by the man? |
| A. | Rs. 3850 |
| B. | Rs. 3700 |
| C. | Rs. 3750 |
| D. | Rs. 3800 |
| Answer» D. Rs. 3800 | |
| 2059. |
Two tuning forks of frequencies 256 and 258 vibrations/second are sounded together. Then the time interval between two consecutive maxima heard by an observer is ? |
| A. | 2 sec |
| B. | .5 sec |
| C. | 250 sec |
| D. | 252 sec |
| Answer» C. 250 sec | |
| 2060. |
Find the income percent of a buyer on 5% debentures of face value Rs. 95 and available in the market for Rs. 125? |
| A. | 4.8% |
| B. | 3.8% |
| C. | 5.8% |
| D. | 2.8% |
| Answer» C. 5.8% | |
| 2061. |
What investment will be required to purchase Rs. 90000 of 8% stock a 110? |
| A. | Rs. 88000 |
| B. | Rs. 88500 |
| C. | Rs. 99000 |
| D. | Rs. 9950 |
| Answer» D. Rs. 9950 | |
| 2062. |
Two wave having the intensities in the ratio of 9: 1 produce interference. The ratio of maximum to minimum intensity is equal to? |
| A. | 10 : 8 |
| B. | 9 : 1 |
| C. | 4 : 1 |
| D. | 2 : 1 |
| Answer» D. 2 : 1 | |
| 2063. |
The velocity of sound is maximum in ? |
| A. | Water |
| B. | Air |
| C. | Vacuum |
| D. | Metal |
| Answer» E. | |
| 2064. |
A company declared an annual dividend of 10%. Find the annual dividend of Ram owing 1500 shares of the company of per value Rs. 10 each? |
| A. | Rs. 1400 |
| B. | Rs. 1700 |
| C. | Rs. 1500 |
| D. | Rs. 1600 |
| Answer» D. Rs. 1600 | |
| 2065. |
A man bought 20 shares of Rs. 50 at 5 discount, the rate of discount being 19/4%.The rate of interest obtained is? |
| A. | 19/ 4% |
| B. | 5.28% |
| C. | 13/4% |
| D. | 4.95% |
| Answer» D. 4.95% | |
| 2066. |
Loudness of a note of sound is ? |
| A. | Directly proportional to amplitude of the wave |
| B. | Directly proportional to square of amplitude of wave |
| C. | Directly proportional to velocity of the wave |
| D. | Directly proportional to square of velocity of the wave |
| Answer» C. Directly proportional to velocity of the wave | |
| 2067. |
Sakshi invests a part of Rs.12,000 in 12% stock at Rs. 120 and the remainder in 15% stock at Rs. 125. If his total dividend per annum is Rs. 1360, how much does he invest in 12% stock at Rs. 120? |
| A. | Rs. 4000 |
| B. | Rs. 5500 |
| C. | Rs. 45000 |
| D. | Rs. 6000 |
| Answer» B. Rs. 5500 | |
| 2068. |
The capital of a company is made up of 50000 preferred shares with dividend of 20% and 20000 common shares, the par value of each type of share being Rs. 10. The company has a total profit of Rs. 180000 out of which Rs. 30000 were kept in reverse fund and the remaining distributed to shareholders. Find the dividend percent to the common shareholders? |
| A. | Rs. 24% |
| B. | Rs. 25% |
| C. | Rs. 20% |
| D. | Rs. 30% |
| Answer» C. Rs. 20% | |
| 2069. |
A man invested Rs. 14,400 in Rs. 100 shares of a company at 20% premium. If the company declares 5% dividend at the end of the year, then how much does he get? |
| A. | Rs. 500 |
| B. | Rs. 650 |
| C. | Rs. 600 |
| D. | Rs. 720 |
| Answer» D. Rs. 720 | |
| 2070. |
In the longitudinal waves the direction of vibration in medium of particle is ? |
| A. | Perpendicular to propagation of wave |
| B. | Parallel to propagation |
| C. | Different from each other |
| D. | Variable for time to time. |
| Answer» C. Different from each other | |
| 2071. |
With the propagation of a longitudinal wave through a material medium the quantities transmitted in the propagation direction are? |
| A. | Energy, momentum and mass |
| B. | Energy |
| C. | Energy and mass |
| D. | Energy and linear momentum |
| Answer» E. | |
| 2072. |
Sound waves having the following frequencies are audible to human beings ? |
| A. | 5 c/s |
| B. | 27000 c/s |
| C. | 5000 c/s |
| D. | 50,000 c/s |
| Answer» D. 50,000 c/s | |
| 2073. |
A person buys 19/2 Stock of Rs. 72000 at 144. Find his annual income? |
| A. | Rs. 6640 |
| B. | Rs. 6900 |
| C. | Rs. 6840 |
| D. | Rs. 7240 |
| Answer» D. Rs. 7240 | |
| 2074. |
Shyam purchased 12000 shares of a company, of par value Rs. 10 each, paying an annual dividend of 15% at such a price, that she gets 10% on her investment. Find the market value of a share? |
| A. | Rs. 25 |
| B. | Rs. 20 |
| C. | Rs. 15 |
| D. | Rs. 14 |
| Answer» D. Rs. 14 | |
| 2075. |
Jatin invested Rs. 27260 in buying Rs. 100 shares of a company at Rs. 116 each. If the company paid 16% dividend at the end of the year. Find his income from the dividend? |
| A. | Rs. 3560 |
| B. | Rs. 3760 |
| C. | Rs. 2760 |
| D. | Rs. 3660 |
| Answer» C. Rs. 2760 | |
| 2076. |
When a compression is incident on rigid wall it is reflected as ? |
| A. | Compression with a phase change of |
| B. | Compression with no phase change |
| C. | Rarefaction with a phase change of |
| D. | Rarefaction with no phase change |
| Answer» B. Compression with no phase change | |
| 2077. |
Find the investment to get an income of Rs. 1938 from 19/2% Stock at 90 (Brokerage 1%)? |
| A. | Rs. 19642.60 |
| B. | Rs. 18543.60 |
| C. | Rs. 17543.00 |
| D. | Rs. 18600.60 |
| Answer» D. Rs. 18600.60 | |
| 2078. |
The wavelength of sound in air is 10 cm. its frequency is, (Given velocity of sound = 330 m/s) ? |
| A. | 330 cycles per second |
| B. | 3.3 kilo cycles per second |
| C. | 30 mega-cycles per second |
| D. | 3 × 105 cycles per second |
| Answer» C. 30 mega-cycles per second | |
| 2079. |
Find the income on 12% stock of Rs. 60000 purchased at Rs. 110? |
| A. | Rs. 7200 |
| B. | Rs. 7400 |
| C. | Rs. 7500 |
| D. | Rs. 8200 |
| Answer» B. Rs. 7400 | |
| 2080. |
In these option, 11% stock at 143 or 37/4%. Stock at 117, which is better investment? |
| A. | 11% stock at 143 |
| B. | 37/4%Stock at 117 |
| C. | Both are equally goodsCannot be compared, as the total amount of investment is not given |
| D. | Rs. 5600 |
| Answer» E. | |
| 2081. |
Which one of the following cannot represent a traveling wave/ |
| A. | y f (x t |
| B. | y ym sin k (x t |
| C. | y ym log (x t) |
| D. | y f (x2 t2) |
| Answer» D. y f (x2 t2) | |
| 2082. |
Seema had 50 preferred shares and 400 common shares of par value Rs. 100 each. If the dividend declared on preferred shares is 10% per annum and a semi-annual dividend of 7.5% is on common shares find the annual dividend received by Seema? |
| A. | Rs. 7500 |
| B. | Rs. 8500 |
| C. | Rs. 6500 |
| D. | Rs. 5500 |
| Answer» D. Rs. 5500 | |
| 2083. |
Two tuning forks A and B vibrating simultaneously produce 5 beats. Frequency of B is 512 Hz. It is seen that if one arm of A is filed, then the number of beats increases. Frequency of A will be? |
| A. | 502 Hz |
| B. | 507 Hz |
| C. | 517 Hz |
| D. | 522 Hz |
| Answer» D. 522 Hz | |
| 2084. |
A company has issued 10000 preferred shares and 50000 common shares both of par value Rs. 100 each. The dividend on a preferred share and a common share is 12% and 17.6%, respectively. The company had a total profit of 15 lakh rupees out of which some amount was kept in reverse fund and the remaining disturbed as dividend. Find the amount kept in reserve fund? |
| A. | Rs. 5 lakh |
| B. | Rs. 6.5 lakh |
| C. | Rs. 6 lakh |
| D. | Rs. 5.5 lakh |
| Answer» B. Rs. 6.5 lakh | |
| 2085. |
A company declared a semi-annual dividend of 15/2 %. Find the annual dividend of Chetan, owing 1250 shares of the company having a par value of Rs. 10 each? |
| A. | Rs. 1875 |
| B. | Rs. 1680 |
| C. | Rs. 1757 |
| D. | Rs. 1575 |
| Answer» B. Rs. 1680 | |
| 2086. |
A man invested Rs. 50490 in 5% stock at 99 and sold it when the price rose to Rs. 102. He invested the sale proceeds in 8% stock at 96. Find the change in man’s income (Brokerage: Rs. 3)? |
| A. | Rs. 1485 |
| B. | Rs. 1385 |
| C. | Rs. 1585 |
| D. | Rs. 1685 |
| Answer» B. Rs. 1385 | |
| 2087. |
Raja invested Rs. 99000 in 15/2% Stocks at 163/2(Brokerage: Re. 1). Find Ram’s annual income from his investment? |
| A. | Rs. 9500 |
| B. | Rs. 10500 |
| C. | Rs. 10000 |
| D. | Rs. 9000 |
| Answer» E. | |
| 2088. |
Whichnone of the following is a correct statement? |
| A. | Q1, Q2, Q3, … are in A.P. with common difference 5 |
| B. | Q1, Q2, Q3, … are in A.P. with common difference 6 ( |
| C. | Q1, Q2, Q3, … are in A.P. with common difference 11 |
| D. | Q1 = Q2 = Q3 = |
| Answer» C. Q1, Q2, Q3, … are in A.P. with common difference 11 | |
| 2089. |
Tangents are drawn from the point (17, 7) to the circle x2 y2 = 169.STATEMENT -1 : The tangents are mutually perpendicular.becauseSTATEMENT -2 : The locus of the points fromnwhich mutually perpendicular tangents can be drawn to the givencircle is x2 y2 = 338 |
| A. | Statement -1 is True, Statement -2 is true; Statement-2 is a correct explanation for Statement-1 |
| B. | Statement -1 is True, Statement -2 is true; Statement-2 is NOT a correct explanation for Statement-1 |
| C. | Statement -1 is True, Statement -2 is False |
| D. | Statement -1 is False, Statement -2 is True |
| Answer» B. Statement -1 is True, Statement -2 is true; Statement-2 is NOT a correct explanation for Statement-1 | |
| 2090. |
Let F(x) be an indefinite integral of sin2x.STATEMENT -1 : The function F(x) satisfies F(x π) =F(x) for all real xbecauseSTATEMENT -2 : sin2(x π) = sin2x for all real x. |
| A. | Statement -1 is True, Statement -2 is True; Statement-2 is a correct explanation for Statement-1 |
| B. | Statement -1 is True, Statement -2 is True; Statement |
| C. | Statement -1 is True, Statement -2 is False |
| D. | Statement -1 is False, Statement -2 is True |
| Answer» E. | |
| 2091. |
A, B and C enter into a partnership and their shres are in the ratiot1/2:t1/3:t1/4 .After 2 months, A withdraws half of his capital and after 10 months, a profit of Rs. 378 is divided among them. What is B’s share? |
| A. | Rs. 129 |
| B. | Rs. 156 |
| C. | Rs. 144 |
| D. | Rs. 168 |
| Answer» D. Rs. 168 | |
| 2092. |
One Indian and four American men and their wives are to be seated randomly around a circular table. Then theconditional probability that the Indian man is seated adjacent to his wife given that each American man is seatedadjacent to his wife is? |
| A. | 1/2 |
| B. | 1/3 |
| C. | 2/5 |
| D. | 1/5 |
| Answer» D. 1/5 | |
| 2093. |
A man walks a distance of 3 units from the origin towards the north-east (N 45° E) direction. From there, he walks adistance of 4 units towards the north-west (N 45° W) direction to reach a point P. Then the position of P in the Argand plane is |
| A. | 3eiπ/4 + 4i |
| B. | 3 − 4i) eiπ/4 |
| C. | (4 + 3i) eiπ/4 |
| D. | 3 + 4i) eiπ/4 |
| Answer» E. | |
| 2094. |
The number of distinct real values of λ, for which the vectors − λ2ˆi ˆj ˆk , ˆi − λ2ˆj ˆk and ˆi ˆj − λ2ˆk acoplanar, is |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |
| 2095. |
The tangent to the curve y = ex drawn at the point (c, ec) intersects the line joining the points (c − 1, ec−1) and (c 1, ec 1) |
| A. | on the left of x = c |
| B. | on the right of x = c |
| C. | at no point |
| D. | at all points |
| Answer» B. on the right of x = c | |
| 2096. |
A, B and C jointly thought of engaging themselves in a business venture. It was agreed that A would invest Rs. 6500 for 6 months, B, Rs. 8400 for 5 months and C, Rs. 10,000 for 3 months. A wants to be the working member for which he was to receive 5% of the profits. The profit earned was Rs. 7400 Calculate the share of B in the profit? |
| A. | Rs. 1900 |
| B. | Rs. 2800 |
| C. | Rs. 2660 |
| D. | Rs. 2840 |
| Answer» D. Rs. 2840 | |
| 2097. |
The number of solutions of the pair of equations2 sin2θ − cos2θ =02 cos2θ − 3 sinθ =0in the interval [0, 2π] is |
| A. | 00 |
| B. | 1 |
| C. | 2 |
| D. | 4 |
| Answer» D. 4 | |
| 2098. |
STATEMENT-1: Boron always forms covalent bond.STATEMENT-2: The small size of B3 favours formation of covalent bond. |
| A. | Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1 |
| B. | Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1. |
| C. | Statement-1 is True, Statement-2 is True. |
| D. | Statement-1 is False, Statement-2 is True. |
| Answer» B. Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1. | |
| 2099. |
A hyperbola, having the transverse axis of length 2 sinθ, is confocal with the ellipse 3x2 4y2 = 12. Then its equation is? |
| A. | x2 cosec2θ − y2 sec2θ = 1 |
| B. | x2 sec2θ − y2 cosec2θ = 1 |
| C. | x2 sin2θ − y2 cos2θ = 1 |
| D. | x2 cos2θ − y2 sin2θ = 1 |
| Answer» B. x2 sec2θ − y2 cosec2θ = 1 | |
| 2100. |
Match the complexes in Column-I with their properties listed in Column-II. |
| A. | Co(NH3)4(H2O)2]Cl2(p) geometrical isomers |
| B. | Pt(NH3)2Cl2](q) paramagnetic |
| C. | [Co(H2O)5Cl]Cl(r) diamagnetic |
| D. | Ni(H2O)6]Cl2(s) metal ion with +2 oxidation state |
| Answer» B. Pt(NH3)2Cl2](q) paramagnetic | |