ertion : When a ray of light travels from air to

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Q.
Assertion : When a ray of light travels from air to water, its speed will increase.
Reason : The speed of light is slower in a denser medium than in a rarer medium.

1 Both assertion and reason are correct and reason is the correct explanation of assertion.

2 Both assertion and reason are correct but reason is not the correct explanation of assertion.

3 Assertion is true but reason is false.

4 Assertion is false but reason is true.

Ans.
(4)

When a ray of light travels from air to water, its speed slows down because we know that the velocity is slower in a denser medium (water) to rarer medium (air). Thus, assertion is false but reason is true.

Solution

Q.
Assertion : When a ray of light travels from air to water, its speed will increase.
Reason : The speed of light is slower in a denser medium than in a rarer medium.

1 Both assertion and reason are correct and reason is the correct explanation of assertion.

2 Both assertion and reason are correct but reason is not the correct explanation of assertion.

3 Assertion is true but reason is false.

4 Assertion is false but reason is true.

Ans.
(4)

When a ray of light travels from air to water, its speed slows down because we know that the velocity is slower in a denser medium (water) to rarer medium (air). Thus, assertion is false but reason is true.

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Solution

Q. Assertion : When a ray of light travels from air to water, its speed will increase. Reason : The speed of light is slower in a denser medium than in a rarer medium.

1 Both assertion and reason are correct and reason is the correct explanation of assertion.

2 Both assertion and reason are correct but reason is not the correct explanation of assertion.

3 Assertion is true but reason is false.

4 Assertion is false but reason is true.

Ans. (4) When a ray of light travels from air to water, its speed slows down because we know that the velocity is slower in a denser medium (water) to rarer medium (air). Thus, assertion is false but reason is true.

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Q.
Assertion : When a ray of light travels from air to water, its speed will increase.
Reason : The speed of light is slower in a denser medium than in a rarer medium.

Ans.
(4)

When a ray of light travels from air to water, its speed slows down because we know that the velocity is slower in a denser medium (water) to rarer medium (air). Thus, assertion is false but reason is true.