Student Login

Home›Chapters›Ray Optics PYQs›Total Internal Reflection›Question 19

MHT CET 2023 (12 May, Shift 1) · Total Internal Reflection

Total Internal Reflection question from MHT CET 2023 (12 May, Shift 1)

Q19MHT CET 2023 · 12 MAY · SHIFT 1Easy

Total Internal Reflection

One of the necessary condition for total internal reflection to take place is

( $i =$ angle of incidence, $i_c =$ critical angle)

Show answer and solution

Answer: (d)

For TIR the angle of incidence in the denser medium must be greater than the critical angle.
At $i = i_c$ the refracted ray just grazes the surface; for $i < i_c$ refraction occurs.
So the answer is (d) $i > i_c$ .

Report a mistake

More questions on Total Internal Reflection

Light travels a distance x in time t₁ in air and 10x in time t₂ in another denser medium…NEET 2023
The critical angle for a denser-rarer interface is 45°. The speed of light in rarer…JEE Main 2023 (11 Apr, Shift 1)
A ray of light is incident from air on a glass plate having thickness √(3) cm and…JEE Main 2023 (25 Jan, Shift 1)
The speed of light in two media M₁ and M₂ are 1.5 × 10⁸ m/s and 2 × 10⁸ m/s respectively…MHT CET 2022 (11 Aug, Shift 2)
Two transparent media A and B are separated by a plane boundary. The speed of light in…NEET 2022 (Phase 1)
Light travels in two media M₁ and M₂ with speeds 1.5 × 10⁸ ms⁻¹ and 2.0 × 10⁸ ms⁻¹…JEE Main 2022 (26 Jul, Shift 2)
The speed of light in media 'A' and 'B' are 2.0 × 10¹⁰ cm/s and 1.5 × 10¹⁰ cm/s…JEE Main 2022 (29 Jun, Shift 2)
A light wave travelling linearly in a medium of dielectric constant 4, is incident on the…JEE Main 2022 (25 Jun, Shift 1)