Physics
Grade-10
Easy
Question
The temperatures at which the various layers of the atmosphere are present are given below in terms of degree Celsius. Identify the layer which has the highest refractive index.
- 24
- 18
- 47
- 35
Hint:
Refractive index of a medium decreases with the increase in temperature.
The correct answer is: 18
Refractive index of a medium decreases with the increase in temperature. With the increase in temperature, the speed of light in that medium increases; thus, the refractive index decreases.
So 18 is correct
Related Questions to study
Physics
Light from air at a temperature of 37 degrees Celsius enters a layer of the atmosphere at 29 degrees Celsius. The light ray ______ on entering the latter.
Light from air at a temperature of 37 degrees Celsius enters a layer of the atmosphere at 29 degrees Celsius. The light ray ______ on entering the latter.
PhysicsGrade-10
Physics
The temperatures at which the various layers of the atmosphere are present are given below in terms of degree Celsius. Identify the layer which has the lowest refractive index.
The temperatures at which the various layers of the atmosphere are present are given below in terms of degree Celsius. Identify the layer which has the lowest refractive index.
PhysicsGrade-10
Physics
When starlight enters the Earth’s atmosphere, it bends _____.
When starlight enters the Earth’s atmosphere, it bends _____.
PhysicsGrade-10
Physics
Which of the following is an effect of atmospheric refraction?
Which of the following is an effect of atmospheric refraction?
PhysicsGrade-10
Physics
Due to atmospheric refraction the duration of a normal day _____ by____ minutes.
Due to atmospheric refraction the duration of a normal day _____ by____ minutes.
PhysicsGrade-10
Physics
When we go from outer space towards the Earth, the temperature of the atmosphere ______.
When we go from outer space towards the Earth, the temperature of the atmosphere ______.
PhysicsGrade-10
Physics
The apparent sunset takes place _____ minutes _____ the actual sunset.
The apparent sunset takes place _____ minutes _____ the actual sunset.
PhysicsGrade-10
Physics
When we go from outer space towards the Earth, the refractive index of the atmosphere ______.
When we go from outer space towards the Earth, the refractive index of the atmosphere ______.
PhysicsGrade-10
Physics
The refractive index of hot air is _____ the refractive index of cool air.
The refractive index of hot air is _____ the refractive index of cool air.
PhysicsGrade-10
Physics
The apparent position of a star is slightly raised w.r.t. its actual position. This is due to _____.
The apparent position of a star is slightly raised w.r.t. its actual position. This is due to _____.
PhysicsGrade-10
Physics
The refractive index of the atmosphere is _____.
The refractive index of the atmosphere is _____.
PhysicsGrade-10
Physics
The refractive index of a medium depends upon the ____ of the medium.
The refractive index of a medium depends upon the ____ of the medium.
PhysicsGrade-10
Physics
The apparent sunrise takes place _____ minutes _____ the actual sunrise.
The apparent sunrise takes place _____ minutes _____ the actual sunrise.
PhysicsGrade-10
Physics
The sun appears to be _______ during sunrise and sunset.
The sun appears to be _______ during sunrise and sunset.
PhysicsGrade-10
Physics
The stars appear to twinkle from the Earth’s surface. This is due to ____.
The stars appear to twinkle from the Earth’s surface. This is due to ____.
PhysicsGrade-10
