Home
Class 9
PHYSICS
Assertion : Incident ray is directed tow...

Assertion : Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason : Angle of incidence i = Angle of reflection r = 0°.

A

If both assertion and reason are true and reason is the correct explanation.

B

If both assertion and reason are true and reason is not the correct explanation.

C

If assertion is true but reason ·is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • LIGHT

    FULL MARKS|Exercise EXERCISE (VI. Answer very briefly. )|6 Videos
  • LIGHT

    FULL MARKS|Exercise EXERCISE (VII. Answer briefly )|5 Videos
  • LIGHT

    FULL MARKS|Exercise EXERCISE (IV. Match the following. )|1 Videos
  • HEAT

    FULL MARKS|Exercise Additional Questions (Long Answer)|4 Videos
  • MAGNETISM AND ELECTROMAGNETISM

    FULL MARKS|Exercise ACTIVITY|1 Videos

Similar Questions

Explore conceptually related problems

It the angle of incidence is 45^@ , then the angle of reflection is ____.

According to law of reflection of sound, angle of incidence is equal to angle of reflection.

Knowledge Check

  • In the case of reflection of sound waves angle of incidence is:

    A
    less than angle of incidence
    B
    equal to angle of incidence
    C
    greater than angle of incidence
    D
    greater than angle of refraction.
  • A ray of light is incidenting normally on a plane mirror. The angle of reflection will be

    A
    `0^@`
    B
    `90^@`
    C
    will not be reflected
    D
    None of these
  • Similar Questions

    Explore conceptually related problems

    Assertion and Reason. Mark the correct choice as:Assertion:A ray incident along normal to the mirror retraces its path Reason: In reflection, angle of incidence is always equal to angle of reflection.

    State the direction of incident ray which after reflection from a spherical mirror retraces its path. Give reason for your answer.

    True or False -If false give the correct statement.Angle of incidence is greater than the angle of reflection.

    The angle of incidence for a ray of light having zero reflection angle is

    In the figure, the incident ray makes 27^(@) with the normal, then find the angle of reflection

    A point source of light is placed at the centre of curvature of a hemispherical surface. The radius of curvature is r and the inner surface is completely reflecting. Find the force on the hemisphere due to the light falling on its if the source emits a power W.