Explore topic-wise MCQs in AIIMS MBBS.

This section includes 120 Mcqs, each offering curated multiple-choice questions to sharpen your AIIMS MBBS knowledge and support exam preparation. Choose a topic below to get started.

1.

The near point and far point of a person are 40 cm and 250 cm respectively. Determine the power of the lens he/she should use while reading a book kept at distance 25 cm from the eye.

A. 2.5 D
B. 5.0 D
C. 1.5 D
D. 3.5 D
Answer» D. 3.5 D
2.

On the same path, the source and observer are moving such ways that the distance between these two increases with the time. The speeds of source and observer are same and equal to 10 ms−1 with respect to the ground while no wind is blowing. The apparent frequency received by observer is 1950 Hz, then the original frequency must be (the speed of sound in present medium is 340 m/s)

A. 2068 Hz
B. 2100 Hz
C. 1903 Hz
D. 602 Hz
Answer» B. 2100 Hz
3.

If the intensity is increased by a factor of 20, then how many decibels in the sound level increased?

A. 18
B. 13
C. 9
D. 7
Answer» C. 9
4.

The force on a particle as the function of displacement x (in x-direction) is given by F = 10 + 0.5x The work done corresponding to displacement of particle from x = 0 to x = 2 unit is

A. 25 J
B. 29 J
C. 21J
D. 18 J
Answer» D. 18 J
5.

A block having mass m collides with an another stationary block having mass 2 m. The lighter block comes to rest after collision. If the velocity of first block is v, then the value of coefficient of restitution will must be

A. 0.5
B. 0.4
C. 0.6
D. 0.8
Answer» B. 0.4
6.

The phase difference between the flux linked with a coil rotating in a uniform magnetic field and induced emf produce in it is

A. π/2
B. π/3
C. − π/6
D. π
Answer» B. π/3
7.

While keeping area of cross and length of solenoid one both doubled. The self inductance of the coil will be

A. halved
B. doubled
C. 1/4times the original value
D. unaffected
Answer» C. 1/4times the original value
8.

A uniform disc is acted by two equal forces of magnitude F. One of them, acts tangentially to the disc, while other one is acting at the central point of the disc. The friction between disc surface and ground surface is nF. If r be the radius of the disc, then the value of n would be (in N)

A. 0
B. 1.0
C. 2.1
D. 3.2
Answer» B. 1.0
9.

A uniform metallic rod rotates about its perpendicular bisector with constant angular speed. If it is heated uniformly to raise its temperature slightly, then

A. its speed of rotation increases
B. its speed of rotation decreases
C. its speed of rotation remains same
D. its speed increases because its moment of inertia increases
Answer» C. its speed of rotation remains same
10.

A ball is dropped from a bridge 122.5 m above a river. After the ball has been falling for 2s, a second ball is thrown straight down after it. What must the initial velocity of the second ball be so that both hit the water at the same time?

A. 40 m/s
B. 55.5 m/s
C. 26.1 m/s
D. 9.6 m/s
Answer» D. 9.6 m/s
11.

If the magnetizing field on a ferromagnetic material is increased, its permeability

A. decreased
B. increased
C. is unaffected
D. may be increased or decreased
Answer» B. increased
12.

Who is known as ‘Little Corporal’?

A. Adolf Hitler
B. Napolean Bonaparte
C. William E Gladstone
D. None of these
Answer» C. William E Gladstone
13.

Late Raja Ravi Verma was an eminent figure in which of the following fields?

A. Dance
B. Politics
C. History
D. Painting
Answer» E.
14.

Spam is related to

A. Computer
B. Art
C. Music
D. Game
Answer» B. Art
15.

What is a modem connected to?

A. Processor
B. Mother board
C. Printer
D. Phone line
Answer» E.
16.

Who was the first woman Prime Minister to become the Prime Minister of a country?

A. Golda Meir
B. Margaret Thatcher
C. Indira Gandhi
D. Sirimavo Bhandharnaike
Answer» E.
17.

Which one among following is not a fixed capital?

A. Tools
B. Machines
C. Building
D. Money
Answer» C. Building
18.

What is the fixed strength of Rajya Sabha?

A. 210
B. 220
C. 230
D. 250
Answer» E.
19.

The most literate union territory in India is

A. Delhi
B. Lakshadweep
C. Chandigarh
D. Pondicherry
Answer» C. Chandigarh
20.

Water vapour is turned into water droplets by the process of

A. evaporation
B. liquification
C. convection
D. condensation
Answer» E.
21.

Which river crosses the equator twice?

A. Amazon
B. Congo
C. Nile
D. Orinoco
Answer» C. Nile
22.

Which of the following is igneous rock?

A. Limestone
B. Slate
C. Marble
D. Basalt
Answer» E.
23.

Tsunamis are originated due to

A. Sea waves
B. Earthquake
C. Hurricane
D. Rotation of Earth
Answer» C. Hurricane
24.

Which is closest star to the Earth?

A. Sirius
B. Sun
C. Deneb
D. Vega
Answer» C. Deneb
25.

Who was the founder of Ram Krishna Mission?

A. Swami Vivekananda
B. Raja Ram Mohan Rai
C. Swami Dayananda Saraswati
D. Ram Krishna Paramhansa
Answer» B. Raja Ram Mohan Rai
26.

Among the following who was not a proponent of Bhakti cult?

A. Nagarjuna
B. Tukaram
C. Tyagaraja
D. Vallabhacharya
Answer» B. Tukaram
27.

Sudden decrease of birth rate would cause

A. increase in per capita income
B. increase in investment
C. increase in savings
D. increase in loan requests
Answer» B. increase in investment
28.

Where did Lord Buddha breathe his last (Mahapari Nirvan)?

A. Rajgir
B. Bodh Gaya
C. Sarnath
D. Kushinagar
Answer» E.
29.

Who constructed Sanchi Stupa?

A. Chandragupta
B. Kautilya
C. Gautam Buddha
D. Ashok
Answer» E.
30.

Assertion The thallus of Riccia is internally differentiated into an upper photosynthetic region and lower storage region. Reason The lower storage region is formed from parenchymatous cells.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
31.

Assertion A woman is capable of sucing a man of refusing to own a child, who has blood group O. The man has blood group B and woman has A. Reason She is right as genetically, the can be the father of the child.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
32.

Assertion After hearing a sound, nerve impulse passes from neurons to the brain Reason The neurons which passes nerve impulse from body organ to brain is called afferent neuron.

A. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
B. Both Assertion and Reason are true and Reason is the correct explanation of Ass`ertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» C. Assertion is true but Reason is false
33.

Assertion Zoospores in Chlamydomonas are frequently formed in the night during favourable conditions. Reason Zoospore swim for a certain time and then grows into a new plant.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» C. Assertion is true but Reason is false
34.

Assertion Second infection of the same pathogen is quickly eliminated. Reason Preformed memory B and T-cells elicit a quick and vigorous attack on pathogens.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
35.

Assertion DNA is more stable while RNA is more reactive. Reason DNA was first discovered by Watson and Crick (1953).

A. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
B. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» D. Both Assertion and Reason are false
36.

Assertion In bacteria the chromosome is irregularly folded into a compact mass, the nucleoid or genophore of definite form. Reason In bacteria there is no organized nucleus.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
37.

Assertion Removal of keystone species cause serious disruption in the functioning of the community. Reason Keystone species are low in abundance (or biomass) than the dominant species.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» C. Assertion is true but Reason is false
38.

Assertion Mammals have developed a complex respiratory system. Reason Mammalian skin is impermeable to gases.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» C. Assertion is true but Reason is false
39.

Assertion Find structure of the objects can be observed by Transmission Electron Microscope (TEM). Reason Study of living cells can not be done through TEM, because of high voltage, which is required to operate it, kills the cells.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» C. Assertion is true but Reason is false
40.

Assertion Enzymes becomes inactive below minimum temperature. Reason The inactivity of the enzymes is due to denaturation.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» D. Both Assertion and Reason are false
41.

Assertion Presence of photorespiration is considered as a wasteful and energy consuming process in crop plants, ultimately leads to reduction in yield. Reason During C3 synthesis up 50% CO2 fixed may have to pass through photorespiratory process to form carbohydrate such as sucrose.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
42.

Assertion Reproductive isolation brings about sympatric speciation. Reason It is the primary mode of speciation. e.g., Darwin’s finches.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» C. Assertion is true but Reason is false
43.

Assertion Lysosomes are organelle in eukaryotic cells that contains digestive enzymes to digest macromolecules. Reason Lysosoems are also called phagolysosomes or heterophagosomes or digestive vacuoles.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
44.

Assertion Seeds fails to germinate at very low and high temperature. Reason Seeds sown deep into the soil fail to germinate.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» C. Assertion is true but Reason is false
45.

Assertion Rigon mortis is the state of body stiffering prior to death. Reason It is due to relaxation of action and myosin filaments.

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
C. Assertion is true but Reason is false
D. Both Assertion and Reason are false
Answer» E.
46.

Saheli, is an oral contractive pill that has very high contraceptive value with little side effects. It is because

A. it is taken once in a week
B. it contains synthetic progesterone
C. it contains centchroman
D. it decreases risk of cancer
Answer» D. it decreases risk of cancer
47.

The disease caused by leishmania and transmitted by Phlebotomus is

A. African sleeping sickness
B. Amoebic dysentry
C. Kala-azar fever
D. Chaga’s disease
Answer» D. Chaga’s disease
48.

In which one of the following pairs, the two items mean the same thing?

A. Haemophilia―Blood cancer
B. SA-node-Pacemaker
C. Malleus―Anu
D. Leucocytes―Lymphocytes
Answer» C. Malleus―Anu
49.

Elater mechanism for seed dispersal is exhibited by

A. Riccia
B. Marchantia
C. Dryopteris
D. Funaria
Answer» C. Dryopteris
50.

Which of the following is common among mammals?

A. They do not moult
B. They have seven cervical vertebrae
C. The are carnivores
D. They have ventral nerve cord
Answer» C. The are carnivores