AIPMT 2011 Prelims | Geometrical Optics Question 55 | Physics

A biconvex lens has a radius of curvature of magnitude 20 cm. Which one of the following options describe best the image formed of an object of height 2 cm placed 30 cm from the lens ?

Virtual, upright, height = 1 cm

Virtual, upright, height = 0.5 cm

Real, inverted, height = 4 cm

Real, inverted, height = 1 cm

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

Which of the following is not due to total internal reflection ?

Working of optical fibre

difference between apparent and real depth of a pond

Mirage on hot summer days

Brilliance of diamond

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

A rays of light is incident on a 60^o prism at the minimum deviation position. The angle of refraction at the first face (i.e., incident face) of the prism is

zero

30^o

45^o

60^o

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

The speed of light in media M₁ and M₂ are 1.5 $$ \times $$ 10⁸ m/s and 2.0 $$ \times $$ 10⁸ m/s respectively. A ray of light enters from medium M₁ to M₂ at an incidence angle i. If the rays suffers total internal reflection, the value of i is

Equal to sin^$$-$$1 $$\left( {{2 \over 3}} \right)$$

Equal to or less than sin^$$-$$1$$\left( {{3 \over 5}} \right)$$

Equal to or greater than sin^$$-$$1 $$\left( {{3 \over 4}} \right)$$

Less than sin^$$-$$1$$\left( {{2 \over 3}} \right)$$

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