Physics MCQ Questions with answers

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Here Important Physics MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping Share button.

Learn Physics mcqs in hindi here.

Chandani

🎓 Tutor II ⭐ 10.97K Points

📊 Physics

Q. ntensity 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

✅ Correct Answer: (D) inversely proportional to square of

Chandani

🎓 Tutor II ⭐ 10.97K Points

📊 Physics

Q. 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

✅ Correct Answer: (C) at a place in a valley below sea level

Explanation: Of the four locations mentioned below the highest inside temperature will be attained in the pressure cooker operated with the pressure valve open at a place in a valley below sea level.

Chandani

🎓 Tutor II ⭐ 10.97K Points

📊 Physics

Q. 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

✅ Correct Answer: (D) All of the above

Explanation: Radio telescopes are better than optical telescopes because they can detect faint galaxies which no optical telescope can, they can work even in cloudy conditions and they can work during the day and night.

Mr. Dubey

🎓 Coach ⭐ 104.58K Points

📊 Physics

Q. 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

✅ Correct Answer: (C) visible light

Mr. Dubey

🎓 Coach ⭐ 104.58K Points

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Q. 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

✅ Correct Answer: (A) Moment of inertia and moment of a force

Mr. Dubey

🎓 Coach ⭐ 104.58K Points

📊 Physics

Q. 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

✅ Correct Answer: (C) mercury has greater visibility than water

Mr. Dubey

🎓 Coach ⭐ 104.58K Points

📊 Physics

Q. Optical fibre works on the

(A) principle of refraction
(B) total internal reflection
(C) scattering
(D) interference

💬 Discuss

✅ Correct Answer: (B) total internal reflection

Explanation: The optical fibre is a device which works on the principle of total internal reflection by which light signals can be transmitted from one place to another with a negligible loss of energy. Characteristics of Optical Fibre: It has a large bandwidth.