What is the study of sound called? MCQ with Answer and Explanation

What is the study of sound called?
A. Acoustics
B. Optics
C. Mechanics
D. Dynamics
Answer: Option A
Solution (By JKExamLibrary)
Acoustics is the branch of physics that deals with sound.

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Question #1
Which gas is responsible for the depletion of the Ozone layer?
A. Carbon Dioxide
B. Chlorofluorocarbons (CFCs)
C. Nitrogen Oxide
D. Methane

Correct Answer: Option B


Explanation:
CFCs release chlorine atoms when exposed to UV radiation, which actively destroy ozone molecules in the stratosphere.

Question #2
Which of the following is a type of renewable energy?
A. Nuclear Fission
B. Natural Gas
C. Coal
D. Solar

Correct Answer: Option D


Explanation:
Solar energy is derived from the sun and is replenished naturally, making it renewable.

Question #3
India's first satellite launch vehicle was:
A. SLV-3
B. PSLV
C. GSLV
D. ASLV

Correct Answer: Option A


Explanation:
SLV-3 launched Rohini in 1980.