A plane glass slab is kept over various colour letters, the letter which appears least raised is:

Question

A plane glass slab is kept over various colour letters, the letter which appears least raised is: (A) red (B) violet (C) green (D) blue

Tardigrade Admin · Accepted Answer

Maximum apparent depth means minimum raised from surface. We know that μ =(Real text depth/Apparent text depth) Red colour has minimum value of refractive index and thus maximum value of apparent depth. Hence, it should be raised least.

Q. A plane glass slab is kept over various colour letters, the letter which appears least raised is:

red

violet

green

blue

Maximum apparent depth means minimum raised from surface. We know that $μ = \frac{R e a l d e pt h}{A pp a re n t d e pt h}$ Red colour has minimum value of refractive index and thus maximum value of apparent depth. Hence, it should be raised least.

Q. A plane glass slab is kept over various colour letters, the letter which appears least raised is:

red

violet

green

blue

Maximum apparent depth means minimum raised from surface. We know that μ=ApparentdepthRealdepth​ Red colour has minimum value of refractive index and thus maximum value of apparent depth. Hence, it should be raised least.

Maximum apparent depth means minimum raised from surface. We know that $μ = \frac{R e a l d e pt h}{A pp a re n t d e pt h}$ Red colour has minimum value of refractive index and thus maximum value of apparent depth. Hence, it should be raised least.