Question

Sound takes some time to travel from one place to another. It will be maximum-
A. At night
B. During summer
C. During winter
D. All the time same

Answer 1

Hint: Since we know that the velocity of air is $v\alpha \sqrt {\dfrac{{\gamma RT}}{M}} $. Where T is absolute temperature, R is gas constant, M is molecular mass of gas and $\gamma $ is adiabatic constant, we can say that-Higher the temperature of the atmosphere, the higher the speed of sound.

Complete Step-by-Step solution:
Sound, a mechanically unsettling effect from an equilibrium state that spreads through an elastic material medium. An absolutely subjective meaning of sound is additionally conceivable, as that which is heard by the ear, yet such a definition isn't especially lighting up and is unduly prohibitive, for it is valuable to talk about sounds that can't be heard by the human ear, for example, those that are delivered by dog whistles or by sonar equipment.
In human physiology and psychology, sound is the processing by the brain of these waves and their perception. Only acoustic waves with frequencies ranging from about 20 Hz to 20 kHz, the audio frequency range, produce an auditory perception in humans.
Since temperature is low during winter when contrasted with summer, consequently sound ventures quicker during summer than that during winter. Thus, sound takes additional time during winter than that during summer.

From the above explanation we can say that option B is the correct option.

Note: A sound wave in this way comprises exchanging compressions and rarefactions, or areas of high pressure and low pressure, moving at a specific speed. Put another way, it comprises a periodic (that is, oscillating or vibrating) variation of pressure happening around the equilibrium pressure winning at a specific time and spot.