Physics
Grade-10
Easy
Question
The _____ sunrise and _____ sunset is caused due to atmospheric refraction.
- Advanced, delayed
- Delayed, advanced
- Advanced, advanced
- Delayed, delayed
Hint:
Early sunrise and delayed sunset happens due to atmospheric refraction.
The correct answer is: Advanced, delayed
Early sunrise and delayed sunset happens due to atmospheric refraction.
Related Questions to study
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.
- 12
- 25
- 27
- 30
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
- 12
- 25
- 27
- 30
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When the incandescent bulbs are seen through a turbulent stream of hot air rising above a fire, they appear to be __________.
- Twinkling
- Flickering
- Stable
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When the incandescent bulbs are seen through a turbulent stream of hot air rising above a fire, they appear to be __________.
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- Twinkling
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Which of the following is not an effect of atmospheric refraction?
- Advance sunrise
- Twinkling of stars
- Formation of a rainbow
- Delayed sunset
Which of the following is not an effect of atmospheric refraction?
PhysicsGrade-10
- Advance sunrise
- Twinkling of stars
- Formation of a rainbow
- Delayed sunset
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The refractive index of the atmosphere is _____ related to its refractive index.
- Directly
- Indirectly
- Inversely
- Not
The refractive index of the atmosphere is _____ related to its refractive index.
PhysicsGrade-10
- Directly
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Planets can be considered as _____ sources of light.
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Planets can be considered as _____ sources of light.
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- Point-sized
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When the incandescent bulbs are seen through a turbulent stream of hot air rising above a fire, they appear to be flickering. Why?
- The refractive index of the air above the fire is not stationary
- The temperature of the air above the fire is not stationary
- The physical conditions of the air above the fire are not stationary
- All of the above
When the incandescent bulbs are seen through a turbulent stream of hot air rising above a fire, they appear to be flickering. Why?
PhysicsGrade-10
- The refractive index of the air above the fire is not stationary
- The temperature of the air above the fire is not stationary
- The physical conditions of the air above the fire are not stationary
- All of the above
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 highest refractive index.
- 24
- 18
- 47
- 35
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.
PhysicsGrade-10
- 24
- 18
- 47
- 35
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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.
- Bends away from the normal line
- Bends towards the normal line
- Bends to align itself to the normal line
- Does not bend at all
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.
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- Bends away from the normal line
- Bends towards the normal line
- Bends to align itself to the normal line
- Does not bend at all
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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.
- 24
- 18
- 47
- 35
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.
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- 24
- 18
- 47
- 35
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When starlight enters the Earth’s atmosphere, it bends _____.
- Towards the normal line
- Away from the normal line
- Along the normal line
- Does not bend
When starlight enters the Earth’s atmosphere, it bends _____.
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- Towards the normal line
- Away from the normal line
- Along the normal line
- Does not bend
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Which of the following is an effect of atmospheric refraction?
- Formation of a rainbow
- Colors of various objects
- Objects being visible to us
- Twinkling of stars
Which of the following is an effect of atmospheric refraction?
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- Formation of a rainbow
- Colors of various objects
- Objects being visible to us
- Twinkling of stars
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Due to atmospheric refraction the duration of a normal day _____ by____ minutes.
- Decreases, 2
- Increases, 2
- Decreases, 4
- Increases, 4
Due to atmospheric refraction the duration of a normal day _____ by____ minutes.
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- Decreases, 2
- Increases, 2
- Decreases, 4
- Increases, 4
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When we go from outer space towards the Earth, the temperature of the atmosphere ______.
- Changes randomly
- Increases
- Decreases
- Remains the same
When we go from outer space towards the Earth, the temperature of the atmosphere ______.
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- Changes randomly
- Increases
- Decreases
- Remains the same
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The apparent sunset takes place _____ minutes _____ the actual sunset.
- 2, before
- 2, after
- 3, before
- 3, after
The apparent sunset takes place _____ minutes _____ the actual sunset.
PhysicsGrade-10
- 2, before
- 2, after
- 3, before
- 3, after
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When we go from outer space towards the Earth, the refractive index of the atmosphere ______.
- Changes randomly
- Increases
- Decreases
- Remains the same
When we go from outer space towards the Earth, the refractive index of the atmosphere ______.
PhysicsGrade-10
- Changes randomly
- Increases
- Decreases
- Remains the same