1
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-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
A
Equal to sin$$-$$1 $$\left( {{2 \over 3}} \right)$$
B
Equal to or less than sin$$-$$1$$\left( {{3 \over 5}} \right)$$
C
Equal to or greater than sin$$-$$1 $$\left( {{3 \over 4}} \right)$$
D
Less than sin$$-$$1$$\left( {{2 \over 3}} \right)$$
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
A rays of light is incident on a 60o prism at the minimum deviation position. The angle of refraction at the first face (i.e., incident face) of the prism is
A
zero
B
30o
C
45o
D
60o
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A lens having focal length f and aperture of diameter d forms an image of intensity I. Aperture of diameter $${d \over 2}$$ in central region of lens is covered by a black paper. Focal length of lens and intensity of image now will be respectively
A
$$f\,$$ and $${I \over 4}$$
B
$${{3f} \over 4}$$ and $${I \over 2}$$
C
$$f$$ and $${{3I} \over 4}$$
D
$${f \over 2}$$ and $${I \over 2}$$
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A ray of light travelling in a transparent medium of refractive index $$\mu $$, falls on a surface separating the medium from air at an angle of incidence of 45o. For which of the following value of $$\mu $$ the ray can undergo total internal reflection ?
A
$$\mu $$ = 1.33
B
$$\mu $$ = 1.40
C
$$\mu $$ = 1.50
D
$$\mu $$ = 1.25
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