Physics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Physics, a fundamental topic in the field of General Knowledge. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Physics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Physics mcq questions that explore various aspects of Physics problems. Each MCQ is crafted to challenge your understanding of Physics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace General Knowledge tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Physics MCQs are your pathway to success in mastering this essential General Knowledge topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Physics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Physics knowledge to the test? Let's get started with our carefully curated MCQs!

Physics MCQs | Page 54 of 70

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Q531.
If the refractive index of water is 1.33 and of air is 1, the value of critical angle for water at 90° refracted angle should be

a.

45°

b.

48.8°

c.

51.6°

d.

59.8°

Discuss
Answer: (b).48.8°
Q532.
The greater the value of refractive index of a medium, the bending of light will be

a.

greater

b.

smaller

c.

zero

d.

negative

Discuss
Answer: (a).greater
Q533.
A girl accidently dropped a ring into a pool at night. She shone a powerful torch light to locate the ring. The refractive index of water is 1.33, what is the pool's depth?

a.

2 m

b.

2.6 m

c.

1.1 m

d.

1.9 m

Discuss
Answer: (c).1.1 m
Q534.
The refractive index is the ration between the speed of light in air or vacuum and

a.

a speed of sound in a medium

b.

a speed of light in a medium

c.

can be A or B

d.

none of the above

Discuss
Answer: (b).a speed of light in a medium
Q535.
The unit for the heat capacity is

a.

kg m⁻³

b.

J kg⁻¹ K ⁻¹ or J Kg ⁻¹°C ⁻¹

c.

J K⁻¹ or J °C⁻¹

d.

watt

Discuss
Answer: (b).J kg⁻¹ K ⁻¹ or J Kg ⁻¹°C ⁻¹
Q536.
The symbol for heat capacity is

a.

C

b.

h

c.

c

d.

H

Discuss
Answer: (c).c
Q537.
The amount of thermal energy required to raise the temperature of 1 Kg of a substance by 1 K or 1 °C is known as

a.

heat capacity

b.

specific heat capacity

c.

heat energy

d.

heat power

Discuss
Answer: (b).specific heat capacity
Q538.
To raise its temperature by 10 °C, 10 g of aluminum needs thermal energy of

a.

90 J

b.

9000 J

c.

9 J

d.

900 J

Discuss
Answer: (d).900 J
Q539.
100 g of water requires 13800 J of thermal energy to raise it from 20 °C TO 40°C. What is the heat capacity of 100 g of water?

a.

690 J K⁻¹

b.

69 J K⁻¹

c.

6900 J K⁻¹

d.

69000 J K⁻¹

Discuss
Answer: (a).690 J K⁻¹
Q540.
To raise its temperature by 10 °C, 10 g of copper needs thermal energy of

a.

400 J

b.

4 J

c.

4000 J

d.

40 J

Discuss
Answer: (a).400 J
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