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MCQOPTIONS
This section includes 1777 Mcqs, each offering curated multiple-choice questions to sharpen your 9th Class knowledge and support exam preparation. Choose a topic below to get started.
| 1551. |
A girl is carrying a school bag of 3 Kg mass on her back and moves 200 m on a levelled road. The work done against the gravitational force will be \[(g=10\,m/{{s}^{2}})\]: |
| A. | \[6\times {{10}^{3}}\,J\] |
| B. | 6 J |
| C. | 0.6 J |
| D. | Zero |
| Answer» E. | |
| 1552. |
An arrow of mass \[80\,g\]is moving with a velocity of\[100\text{ }m/s\]. The kinetic energy of the arrow is: |
| A. | 40 J |
| B. | 400 J |
| C. | 40,0000 J |
| D. | 8,000 J |
| Answer» C. 40,0000 J | |
| 1553. |
A body is falling from a height h. After it has fallen a height h/2, it will possess: |
| A. | Only potential energy |
| B. | Only kinetic energy |
| C. | Half potential and half kinetic energy |
| D. | More kinetic and less potential energy |
| Answer» D. More kinetic and less potential energy | |
| 1554. |
In which of the following multiple reflections of sound is used? |
| A. | In stethoscopes |
| B. | In megaphones |
| C. | Design of concert halls |
| D. | All the above |
| Answer» E. | |
| 1555. |
In which part of the ear cochlea is present? |
| A. | Inner ear |
| B. | Middle ear |
| C. | Outer ear |
| D. | Brain |
| Answer» B. Middle ear | |
| 1556. |
A sound-wave source produces 40 crests and 40 troughs in 0.4 second. Find the frequency of the wave. |
| A. | 40 hz |
| B. | 400 hz |
| C. | 100 hz |
| D. | 10.4 hz |
| Answer» D. 10.4 hz | |
| 1557. |
An outfielder throws baseball with an initial kinetic energy of 8000J. An infielder at the same level catches the ball when its kinetic energy is 4000J. If the distance between them is 200m, the resistance of the air is |
| A. | 100 N |
| B. | 50 N |
| C. | 20 N |
| D. | 200 N |
| Answer» D. 200 N | |
| 1558. |
The power of a pump which can pump 200 kgs of water to a height of 200 m in 10 s is (\[\text{g}=\text{1}0\text{ m}/{{\text{s}}^{\text{2}}}\]) |
| A. | 40 kW |
| B. | 80 kW |
| C. | 400 kW |
| D. | 960 kW |
| Answer» B. 80 kW | |
| 1559. |
The bodies of masses 2m and m have their kinetic energies in the ratio 8:1. Then the ratio of their momenta is |
| A. | 0.0423611111111111 |
| B. | 0.0840277777777778 |
| C. | 0.167361111111111 |
| D. | 0.334027777777778 |
| Answer» B. 0.0840277777777778 | |
| 1560. |
A body of mass 0.1 kg is dropped from a height of 10 m at a place where \[\text{g}=\text{1}0\text{ m}/{{\text{s}}^{-\text{2}}}.\]Its K.E. just before it strikes the ground is |
| A. | 1 J |
| B. | 1.04 J |
| C. | 3.5 J |
| D. | 10 J |
| Answer» E. | |
| 1561. |
Work is said to be done if Statement I: a force is applied which brings about motion Statement II: a force is applied but no motion is produced |
| A. | Both Statements are true. Statement-II is the correct explanation of Statement-I. |
| B. | Both Statements are true, Statement - II is not correct explanation of Statement-I. |
| C. | Statement-I is true, Statement-II is false. |
| D. | Statement-I is false, Statement-II is true. |
| Answer» D. Statement-I is false, Statement-II is true. | |
| 1562. |
Statement I : Power is defined as the amount of work done in one unit of time Statement II: When a body does more amount of work in a particular time, its power is said to be greater |
| A. | Both Statements are true, Statement-II is the correct explanation of Statement-I. |
| B. | Both Statements are true, Statement-II is not correct explanation of Statement-I. |
| C. | Statement-I is true, Statement-II is false. |
| D. | Statement-I is false, Statement-II is true. |
| Answer» C. Statement-I is true, Statement-II is false. | |
| 1563. |
Definition of health includes: |
| A. | Physical health only |
| B. | Mental health only |
| C. | Social health only |
| D. | All the above |
| Answer» E. | |
| 1564. |
Study the given table carefully and select the option that correctly fills up the blanks a, b, c and d.DiseaseHormone involvedLevel of hormone secretionAInsulinHyposecretionGrave?s disease (Exophthalmic goitre)bHypersecretionMyxoedemaThyroid hormonescAddison?s diseasedHyposecretion |
| A. | ABCDCretinismThyroid hormonesHypersecretionPenicillin |
| B. | ABCDCretinismGlucocorticoidHypersecretionAldosterone |
| C. | ABCDDiabetes mellitusThyroid hormonesHyposecretionAldosterone |
| D. | ABCDDiabetes mellitusAdrenalineHyposecretionThyroxine |
| Answer» D. ABCDDiabetes mellitusAdrenalineHyposecretionThyroxine | |
| 1565. |
Milind suffered from common cold that got severe due to another infection. He took antibiotics in the treatment. The graph shows the pathogen load in his body during the period of sickness. Select the correct statement(s) regarding it. (i) X represents bacterial infection which decreases rapidly after antibiotic treatment.(ii) X represents fungal infection which decreases rapidly because of body's immunity.(iii) V represents bacterial infection which decreases due to body's immunity and antibiotic treatment.(iv) Y represents viral infection which decreases due to body's immunity.(v) Antibiotic treatment causes decrease in pathogen load for both the infections. |
| A. | (i) and (iv) only |
| B. | (ii), (iii) and (iv) only |
| C. | (v) only |
| D. | (ii) and (v) only |
| Answer» B. (ii), (iii) and (iv) only | |
| 1566. |
Select the correct option regarding the given flow chart. |
| A. | P can be any of the common cold, aspergillosis or typhoid. |
| B. | R can be any of the chikungunya, bubonic plague or malaria. |
| C. | Q can be any of the tuberculosis pneumonia or polio. |
| D. | S can be any of the AIDS, polio or measles. |
| Answer» E. | |
| 1567. |
BCG referes to: |
| A. | Bacillus Coccus Guerine |
| B. | Bacterial Cytosine Guanine |
| C. | Bacillus Calmette Guerine |
| D. | Bacterial Cyanin Guerine |
| Answer» D. Bacterial Cyanin Guerine | |
| 1568. |
Which of the following diseases is caused by the viruses? |
| A. | Dengue fever |
| B. | Cholera |
| C. | Tuberculosis |
| D. | Intestinal worm infection |
| Answer» B. Cholera | |
| 1569. |
____test is done to detect the presence of carbohydrates. |
| A. | Biuret's solution |
| B. | Iodine |
| C. | Personality |
| D. | Lipid panel |
| Answer» C. Personality | |
| 1570. |
Pantothenic acid belongs to: |
| A. | Vitamin C |
| B. | Vitamin B |
| C. | Vitamin A |
| D. | Vitamin E |
| Answer» C. Vitamin A | |
| 1571. |
The pathogens of disease can be transferred from infected mother to the fetus through ____. |
| A. | Breast milk |
| B. | Placenta |
| C. | Ovary |
| D. | Both (a) and (b) |
| Answer» C. Ovary | |
| 1572. |
Select the correct match of the deficiency disease and related nutrient. |
| A. | Vitamin E - Scurvy |
| B. | Iodine - Marasmus |
| C. | Protein - Beriberi |
| D. | Vitamin D - Osteomalacia |
| Answer» E. | |
| 1573. |
Which of the following diseases is caused by worm? |
| A. | Measles |
| B. | Poliomyelitis |
| C. | Tuberculosis |
| D. | Elephantiasis |
| Answer» E. | |
| 1574. |
Which of the following is an infectious disease? |
| A. | Cancer |
| B. | Diabetes |
| C. | Malaria |
| D. | Hypertension |
| Answer» D. Hypertension | |
| 1575. |
The HIV viruses spread from an infected person to a healthy person by ____. |
| A. | Blood transfusion |
| B. | Sexual intercourse |
| C. | Placental transfusion |
| D. | All the above |
| Answer» E. | |
| 1576. |
When our diet lacks one or more nutrients, we can suffer from: |
| A. | Infectious diseases |
| B. | Deficiency diseases |
| C. | Communicable diseases |
| D. | All the above |
| Answer» C. Communicable diseases | |
| 1577. |
Who among the following discovered vaccine for smallpox? |
| A. | Louis Pasteur |
| B. | Edward Jenner |
| C. | Charles Darwin |
| D. | Gregor Mendel |
| Answer» C. Charles Darwin | |
| 1578. |
Which disease is not transmitted by mosquitoes? |
| A. | Dengue |
| B. | Malaria |
| C. | Brain fever or encephalitis |
| D. | Pneumonia |
| Answer» E. | |
| 1579. |
Prophylaxis means: |
| A. | Knowing the cause of a disease. |
| B. | Treatment given to prevent disease. |
| C. | Immunization |
| D. | Healthy lifestyle |
| Answer» C. Immunization | |
| 1580. |
Which of the following contains iron? |
| A. | Melanin |
| B. | Adrenalin |
| C. | Thyroxin |
| D. | Myoglobin |
| Answer» E. | |
| 1581. |
Typhoid is caused by which of the following bacteria? |
| A. | Streptococcus |
| B. | Salmonella |
| C. | Mycobacterium |
| D. | Pneumococcus |
| Answer» C. Mycobacterium | |
| 1582. |
____disease is also known as hydrophobia. |
| A. | Influenza |
| B. | Human rabies |
| C. | AIDS |
| D. | Hepatitis |
| Answer» C. AIDS | |
| 1583. |
Which one among the following is a chronic disease? |
| A. | Common cold |
| B. | Influenza |
| C. | Asthma |
| D. | All the above |
| Answer» D. All the above | |
| 1584. |
Kala - azar is caused by: |
| A. | Ascaris |
| B. | Trypanosoma |
| C. | Leishmania |
| D. | Bacteria |
| Answer» D. Bacteria | |
| 1585. |
Which one of the following diseases is not caused by fungi? |
| A. | Ring worm |
| B. | Skin infections |
| C. | Athlete's foot |
| D. | Dengue |
| Answer» E. | |
| 1586. |
The biologist who found the causative agents of tuberculosis and anthrax. |
| A. | Edward Jenner |
| B. | Robert Brown |
| C. | Virtuous |
| D. | Robert Koch |
| Answer» E. | |
| 1587. |
MMR refers to: |
| A. | Measles, Mumps and Rabies |
| B. | Mumps, Measles and Rickets |
| C. | Measles, Mumps and Rubella |
| D. | Migraine, Measles and rubella |
| Answer» D. Migraine, Measles and rubella | |
| 1588. |
Vectors can be defined as: |
| A. | Animals carry the infecting agents from sick person to another healthy person. |
| B. | Microorganisms which cause many diseases |
| C. | Infected person |
| D. | Diseased plants |
| Answer» B. Microorganisms which cause many diseases | |
| 1589. |
Which microorganism causes amoebiasis? |
| A. | Salmonella |
| B. | Protozoa |
| C. | Fungus |
| D. | Entamoeba histolytica |
| Answer» E. | |
| 1590. |
Match the following diseases in column-I with their pathogens in column-II Column-I Column-II a. Measles 1. Protozoa b. Cholera 2. Virus c. Kalaazar 3. Bacteria |
| A. | a - 1, b - 3, c - 2 |
| B. | a - 1, b - 2, c - 3 |
| C. | a - 2, b - 1, c - 3 |
| D. | a - 2, b - 3, c - 1 |
| Answer» C. a - 2, b - 1, c - 3 | |
| 1591. |
Which of the following tissues provides mechanical strength and flexibility to plants? |
| A. | Parenchyma |
| B. | Collenchyma |
| C. | Aerenchyma |
| D. | Sclerenchyma |
| Answer» C. Aerenchyma | |
| 1592. |
The tissue shown here is ____. |
| A. | Simple squamous epithelial tissue |
| B. | Striated muscle tissue |
| C. | Areolar tissue |
| D. | Ciliated columnar epithelial tissue |
| Answer» E. | |
| 1593. |
X is a conducting tissue that is involved in bidirectional transport of materials in a plant. X is _____. |
| A. | Phloem |
| B. | Xylem |
| C. | Meristem |
| D. | Sclerenchyma |
| Answer» B. Xylem | |
| 1594. |
Which of the following is/are voluntary muscles? |
| A. | Skeletal |
| B. | Cardiac |
| C. | Smooth |
| D. | All of the above |
| Answer» B. Cardiac | |
| 1595. |
Which of these tissues is responsible for contractions that allow the movement of substances of the entire body? |
| A. | Muscle |
| B. | Nervous |
| C. | Epithelial |
| D. | Connective |
| Answer» D. Connective | |
| 1596. |
Nisha labelled parenchyma tissue as shown below. Which of these markings is wrong? |
| A. | Nucleus |
| B. | Vacuole |
| C. | Thick cell wall |
| D. | Intercellular space |
| Answer» D. Intercellular space | |
| 1597. |
Which of the following is the characteristic feature of sclerenchyma tissue? |
| A. | Living cells with hard, rigid secondary walls. |
| B. | Dead cells with uneven thickness in their walls. |
| C. | Dead cells with hard, rigid secondary walls with intercellular species. |
| D. | Living-cells with uneven thickness in their walls. |
| Answer» C. Dead cells with hard, rigid secondary walls with intercellular species. | |
| 1598. |
Direction: Read the given passage in which some words are italicised and answer the following question.The nervous tissue consists of special nerve cell called cyton. The cell is divided into axon and neuron. The cyton has thread like structures extending from it called X. The axon ends into terminal branches that form a Y with other nerve cells.Select the correct statement regarding the italicised words. |
| A. | Cyton should be replaced by axon and vice-versa. |
| B. | Neuron should be replaced by dendrites. |
| C. | The positions of cyton and neuron should be interchanged. |
| D. | All of these |
| Answer» D. All of these | |
| 1599. |
Direction: Refer to the given dichotomous key and answer the following question.I. (a) The cells of tissue have walls. - Go to II(b) The cells of tissue have no walls. - Go to IIIII. (a) The cells are living. - Go to IV(b) The cells are dead. - Go to VIII. (a) The tissue lines the oviducts. – R(b) The tissue transports nutrients. – SIV. (a) Cells store air. – P(b) The tissue conducts nutrients. – QV. (a) The tissue conducts water. – T(b) It is only a mechanical tissue. - USelect the correct match of tissue and its location in body. |
| A. | P - Apical meristem, R - Skin |
| B. | Q - Epidermal covering of leguminous seeds, U - Leaf petiole |
| C. | S - Fruit pulp, T - Bone cavities |
| D. | R - Nasal passages, U - Grit of guava |
| Answer» E. | |
| 1600. |
Direction: Refer to the given dichotomous key and answer the following question.I. (a) The cells of tissue have walls. - Go to II(b) The cells of tissue have no walls. - Go to IIIII. (a) The cells are living. - Go to IV(b) The cells are dead. - Go to VIII. (a) The tissue lines the oviducts. – R(b) The tissue transports nutrients. – SIV. (a) Cells store air. – P(b) The tissue conducts nutrients. – QV. (a) The tissue conducts water. – T(b) It is only a mechanical tissue. - USelect the incorrect option regarding tissues P, Q, R, S, T and U. |
| A. | P is found in aquatic floating plants whereas Tis greatly reduced or absent in aquatic plants. |
| B. | R and S are animal tissues while P and Q are plant tissues. |
| C. | S can be xylem, Q can be blood and U can be parenchyma. |
| D. | R is ciliated epithelial tissue whereas U possesses uniform wall thickenings of lignin. |
| Answer» D. R is ciliated epithelial tissue whereas U possesses uniform wall thickenings of lignin. | |