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Assertion The formula connecting u, v an...

Assertion The formula connecting u, v and f for a spherical mirror is valid only for mirrors sizes which are very small compared to their radii of curvature.
Reason Laws of reflection are stricity valid for plane surface, but not for large spherical.

A

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

B

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

C

If Assertion is true but Reason is false.

D

If Assertion is false but Reason is true.

Text Solution

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The correct Answer is:
C
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Explore conceptually related problems

In each of the questions, assertion(A) is given by corresponding statement of reason (R) of the statemens. Mark the correct answer. Q. Statement I: The formula connecting u,v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. Statement II: Laws of reflection are strictly valid for plane surfaces, but not for large spherical surfaces.

The formula connecting u,v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. Because Statement-2 Laws of reflection are strictly valid for plane surfaces, but nor for large spherical surfaces.s

Statement - 1 : The formula connecting u, v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. Because Statement - 2 : Laws of reflection are strictly valid for plane surfaces, but not for large spherical surfaces.

Assertion:- The formula ((1)/(4)+(1)/(u)=(1)/(f)) connecting u and v for a spherical mirror is valid only for mirros whose sizes are very small compared to their radii of curvatures. Reason:- Laws of reflection are strictly valid for smaller size of of optical system.

Assertion : Focal length of a spherical mirror does not depend on the material from which mirror is made but same for the lens depends on the material of lens. Reason : Law of reflection does not depend on material and surrounding medium but law of refraction depends on refractive index of the materials.

Knowledge Check

  • In each of the questions, assertion(A) is given by corresponding statement of reason (R) of the statemens. Mark the correct answer. Q. Statement I: The formula connecting u,v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. Statement II: Laws of reflection are strictly valid for plane surfaces, but not for large spherical surfaces.

    A
    If both Statement I and Statement II are true and Statement II is the correct explanation of Statement I.
    B
    If both Statement I and Statement II are true but Statement II is not the correct explanation of Statement I.
    C
    If Statement I is true, but Statement II is false.
    D
    If Statement I is false, but Statement II is true.

  • The formula connecting u,v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. Because Statement-2 Laws of reflection are strictly valid for plane surfaces, but nor for large spherical surfaces.s

    A
    Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement -1.
    B
    Statement-1 is true, statement-2 is true, Statement-2 is Not a correct explanation for Statement -3
    C
    Statement-1 is true, statement-2 is false
    D
    Statement-1 is false, statement-2 is true

  • Statement - 1 : The formula connecting u, v and f for a spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature. Because Statement - 2 : Laws of reflection are strictly valid for plane surfaces, but not for large spherical surfaces.

    A
    Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for statement-1.
    B
    Statement-1 is True, Statement-2 is Tru, Statement-2 is not a correct explanantion for statement-1.
    C
    Statement-1 is True, Statement-2 is False
    D
    Statement-1 is False, Statement-2 is True.
    • DC PANDEY-RAY OPTICS-medical entrance special format question
    1. Assertion The formula connecting u, v and f for a spherical mirror is ...

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    2. Assertion Reflected image always travels in opposite direction of obje...

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    4. Assertion : There is no dispersion of light refracted through a rectan...

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    5. Assertion : The images formed by total internal reflections are much b...

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    6. Assertion: In refraction from a plane surface, if object is virtual, t...

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    8. Assertion Sun appears red during sunrise and sunset due to the phenome...

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    9. Assertion A mirror has only one focus, while that of lens has two foci...

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