Assertion : In Young's double slit experiment if wavelength of incident monochromatic light is just doubled, number of bright fringe on the screen will increase.
Reason : Maximum number of bright fringe on the screen is directly proportional to the wavelength of light used.

If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

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If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion

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If Assertion is true statement but Reason is false

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If both Assertion and Reason are false statements

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Solution

The correct option is D If both Assertion and Reason are false statements
Wavelength is inversely proportional to the number of fringes, hence by doubling the wavelength the number of fringes decreases. Hence Assertion and reason are false.

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Assertion: MTP usually is done in order to control the spread of HIV

Reason :MTP is post fertilization method of contraception

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

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

3. Assertion is true statement but reason is false

4. Both assertion and reason are false statements

\to τ = \to r \times \to F b u t \to τ \neq \to F \times \to r .

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