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प्रश्न
A vertical ray of light strikes the horizontal surface of some water:
What is the angle of incidence?
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उत्तर
Angle of incidence is `0^0` because light ray is travelling along the normal and angle of incidence is the angle between the light ray and the normal.
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संबंधित प्रश्न
State whether the following statement is true of false:
A student says that we can see an object because light from our eyes is reflected back by the object.
A wall reflects light and a mirror also reflects light. What difference is three in the way they reflect light?
The image formed by a plane mirror is :
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(d) real, behind the mirror and of the same size as the object.
Fill in the following blank with suitable word:
Light travelling along a normal is ...............refracted.
A coin in a glass tumbler appears to rise as the glass tumbler is slowly filled with water. Name the phenomenon responsible for this effect.
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What is the angle of refraction?
How does the light have to enter the glass:
for no refraction to happen?
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State whether true or false. If false, correct the statement.
The angle of deviation depends on the refractive index of the glass.
Explain with diagrams how refraction of incident light takes place from
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Assertion and reasoning type
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Noor, a young student, was trying to demonstrate some properties of light in her Science project work. She kept ‘X’ inside the box (as shown in the figure) and with the help of a laser pointer made light rays pass through the holes on one side of the box. She had a small butter-paper screen to see the spots of light being cast as they emerged.
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