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MOST IMPORTANT general science mcq - 16 EXERCISES
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The following question based on light, heat, thermodynamics, wave motion, sound, optics & oscillations topic of general science mcq
(a) Low specific heat and low thermal conductivity
(b) High specific heat and low thermal conductivity
(c) High specific heat and high thermal conductivity
(d) Low specific heat and high thermal conductivity
The correct answers to the above question in:
Answer: (d)
Discuss Form
Read more light heat thermodynamics wave sound optics oscillation Based General Science Questions and Answers
Question : 1
The velocity of sound is maximum in
a) Liquid
b) Metal
c) Air
d) Vacuum
Answer »Answer: (b)
Question : 2
Put in ascending order the speed of sound in the mediums.
- Water
- Steel
- Nitrogen
a) 3, 1, 2
b) 1, 3, 2
c) 3, 2, 1
d) 2, 1, 3
Answer »Answer: (a)
Question : 3
Cloudy nights are warmer compared to clear cloudless nights, because clouds
a) Reflect back the heat given off by Earth
b) Produce heat and radiate it towards Earth
c) Prevent cold waves from the sky from descending on Earth
d) Absorb heat from the atmosphere and send it toward Earth
Answer »Answer: (a)
Question : 4
In human eye, image of object forms at
a) Pupil
b) Iris
c) Cornea
d) Retina
Answer »Answer: (d)
Question : 5
By the first law of thermodynamics, for solids
a) δQ = δW + dU
b) dQ = dU + dW
c) dQ = dU
d) δQ = δU / dW
Answer »Answer: (a)
Question : 6
Suppose a rocketship is proceeding from the Earth at a speed of 2/10th the velocity of light. A light in the rocketship appears blue to the passengers on the ship. What colour would it appear to an observer on the Earth?
a) Yellow
b) Orange
c) Blue
d) Yellow-Orange
Answer »Answer: (a)
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