A freely falling body exhibits which type of motion? MCQ with Answer and Explanation

A freely falling body exhibits which type of motion?
A. Zero acceleration
B. Uniform acceleration
C. Non-uniform acceleration
D. Uniform velocity
Answer: Option B
Solution (By JKSSB Mock Tests)
A freely falling body falls under the sole influence of Earth's gravity (neglecting air resistance). Near the surface of the Earth, the acceleration due to gravity ('g') is constant (approximately 9.8 m/s²). Because the acceleration does not change during the fall, it is an example of uniform accelerated motion.

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Practice More Physics Questions

Question #1
The working of an optical fibre is based on
A. Diffraction
B. Refraction
C. Total internal reflection
D. Dispersion

Correct Answer: Option C


Explanation:
Light signal travels by repeated total internal reflection.

This question belongs to: Science Physics
Question #2
A tuning fork produces 4 beats per second when sounded with a 256 Hz standard fork. When a little wax is attached to the tuning fork, the beat frequency drops to 2 beats per second. The original frequency of the tuning fork was:
A. 252 Hz
B. 254 Hz
C. 260 Hz
D. 258 Hz

Correct Answer: Option C


Explanation:
Beat frequency is the absolute difference between two frequencies. Given 4 beats with 256 Hz, the unknown fork is either 256+4=260 Hz or 256-4=252 Hz. Adding wax increases mass, which strictly lowers the frequency of a fork. If it was 252 Hz, lowering it would increase the gap from 256, increasing beats. If it was 260 Hz, lowering it brings it closer to 256, decreasing beats to 2. Thus, it was originally 260 Hz.

This question belongs to: Science Physics
Question #3
Escape velocity from a planet depends on
A. Density of atmosphere
B. Mass of escaping body
C. Mass and radius of planet
D. Radius of planet only

Correct Answer: Option C


Explanation:
v_esc = √(2GM/R), depends on planet's mass and radius, not body's mass.

This question belongs to: Science Physics