Given below are two statements. One is labelled as Assertion (A) and the other is labelled as reason (R).
Assertion (A): By roughening the surface of a sheet its transparency can be reduced.
Reason (R): Glass sheet with rough surface reflects more light.

In the light of the given statements, choose the correct answer from the options given. 

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

(A) is true but (R) is false

Both (A) and (R) are false

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

When a glass surface is made rough, light falling on it gets scattered. Due to this, transparency of glass is reduced.

When a surface is rough, the incident light interacts with the irregularities on the surface, causing the light to scatter in multiple directions. This scattering can lead to a higher amount of reflected light, as the light is not entering the material smoothly but is instead bouncing off the rough surface in various directions. This can result in increased reflectivity and decreased transparency of the glass sheet.

Watch 3-min video & get full concept clarity