Permissible noise level at Residential area during night time is :
A. 45 dB (A)
B. 55 dB (A)
C. 75 dB (A)
D. 80 dB (A)
Answer: Option A
Solution(By Examveda Team)
In commercial areas, it is 65 dB and 55 dB while in residential areas it is 55 dB and 45 dB during daytime and night respectively.This Question Belongs to General Knowledge >> Physics
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A. Latent heat
B. Nuclear fusion
C. Refractive index
D. Stock value
Radiocarbon is produced in the atmosphere as a result of
A. Collision between fast neutrons and nitrogen nuclei present in the atmosphere.
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D. Lightning discharge in atmosphere.
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B. Work done in lifting the stone is equal to rolling it.
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D. Work done in rolling a stone is less than in lifting it.
The absorption of ink by blotting paper involves:
A. Viscosity of ink
B. Capillary action phenomenon
C. Diffusion of ink through the blotting
D. Siphon action
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