Light Flashcards

1
Q

Light is a type of wave called electromagnetic wave.

A

True

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2
Q

The speed of light in vacuum is greater than the speed of light in matter

A

True

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3
Q

Sound waves travel in vacuum unlike light waves

A

False

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4
Q

The electromagnetic spectrum classifies the electromagnetic waves according to their
wavelength

A

True

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5
Q

The angle between the normal and the incoming light ray is called the angle of reflection

A

False

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6
Q

A wave that changes direction as it travels from one material into another is reflecting.

A

False

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7
Q

Transparent

A

It is the material that allows almost all light to pass through it and form a clear image

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8
Q

Translucent

A

It is a material that allows most of the light to pass but it forms a blurry image.

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9
Q

Opaque

A

It is a material that does not allow light to pass through it.

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10
Q

Light ray

A

A narrow beam of light that travels in a straight line

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11
Q

If a light has an angle of incidence 60◦C, what is its angle of reflection.

A

The angle of reflection is 60*C

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12
Q

State the law of reflection

A

The angle of incidence is always equal to the angle of reflection.

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