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 10 of 70

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Q91.
Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?

a.

1.8 km, 0.15 km

b.

2.2 km, 0.20 km

c.

2.8 km, 0.25 km

d.

3.3 km, 0.30 km

Discuss
Answer: (d).3.3 km, 0.30 km
Q92.
Intensity of sound at a point is ____ its distance from the source.

a.

directly proportional to

b.

inversely proportional to

c.

directly proportional to square of

d.

inversely proportional to square of

Discuss
Answer: (d).inversely proportional to square of
Q93.
Of the four locations mentioned below the highest inside temperature will be attained in the pressure cooker operated with the pressure valve open

a.

at sea level

b.

at the top of Mt. Everest

c.

at a place in a valley below sea level

d.

in an aeroplane flying at a height of 10,000 m with inside pressure maintained at the sea level

Discuss
Answer: (c).at a place in a valley below sea level
Q94.
Radio telescopes are better than optical telescopes because

a.

they can detect faint galaxies which no optical telescope can

b.

they can work even in cloudy conditions

c.

they can work during the day and night

d.

All of the above

Discuss
Answer: (d).All of the above
Q95.
Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit

a.

X-rays

b.

ultraviolet light

c.

visible light

d.

radio waves

Discuss
Answer: (c).visible light
Q96.
Out of the following pairs, which one does not have identical dimension?

a.

Moment of inertia and moment of a force

b.

Work and Torque

c.

Angular momentum and Planck's constant

d.

Impulse and Momentum

Discuss
Answer: (a).Moment of inertia and moment of a force
Q97.
Mercury is commonly used as a thermometric fluid rather than water because

a.

specific heat of mercury is less than water

b.

specific heat of mercury is more than water

c.

mercury has greater visibility than water

d.

density of mercury is more than the water

Discuss
Answer: (c).mercury has greater visibility than water
Q98.
Optical fibre works on the

a.

principle of refraction

b.

total internal reflection

c.

scattering

d.

interference

Discuss
Answer: (b).total internal reflection
Q99.
Light from the star, Alpha Centauri, which is nearest to the earth after the sun, reaches the earth in

a.

4.2 seconds

b.

42 seconds

c.

4.2 years

d.

42 years

Discuss
Answer: (c).4.2 years
Q100.
Supersonic plane fly with the speed

a.

less than the speed of sound

b.

of sound

c.

greater than the speed of sound

d.

of light

Discuss
Answer: (c).greater than the speed of sound
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