MereTeacher

JEE • NEET • FOUNDATION

JEE · NEET Previous Year Question

$Which of these is not due to total internal reflection?$

Topic: NEET PYQ

Answer: B. Full step-by-step solution below.

A $working of optical fibre$
B $difference between apparent and real depth of pond$
C $mirage on hot summer days$
D $brillance of diamond$

Correct answer: B

Solution

(b)Difference between apparent and eal depth of a pond is due to refraction Other three are due to TIR.

More Ray Optics PYQs

$A combination of two thin lenses in contact have power + 10 D . The power reduces to + 6 D when the lenses are 0.25 m ap\dots$
$The twinkling effect of star light is due to$
$What is the relative decrease in focal length of a lens for an increase in optical power by 0.1 D from 2.5D? ['D' stands for diopt\dots$
$The exit surface of a prism with refractive index is coated with a material having refractive index . When this…$
$Two convex lenses of focal length 20 cm each are placed coaxially with a separation of 60 cm between them. The image of the distan\dots$