Physics · Reflection of light, spherical mirrors, mirror formula
Assertion A beam of light rays has been reflected from a rough surface. Reason A
Assertion A beam of light rays has been reflected from a rough surface. Reason Amplitude of incident and reflected rays would be different.
- A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- C. Assertion is correct but Reason is incorrect
- D. Assertion is incorrect but Reason is correct
Step-by-step solution
The assertion that a beam of light rays is reflected from a rough surface is correct because rough surfaces cause diffuse reflection, where light scatters in many directions. The reason that the amplitude of incident and reflected rays would be different is not generally true; amplitude may change due to absorption, but it is not a necessary condition for reflection, especially from a rough surface. The reason does not correctly explain the assertion.
Related MCQs
- A spherical mirror and a thin spherical lens have each a focal length of The mirror and lens are likely to be:…
- An image formed by a plane mirror is:…
- The rays of light, which are not paralle to each other and spread out from a point, are called and a bundle of rays, which are parallel to o…
- When a divergent beam of light is incident on a plane mirror, the image formed is…
- A real image, equal in size to the object, is obtained when the object is placed at the centre of curvature in front of a:…