1
IIT-JEE 2011 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

A light ray travelling in glass medium is incident on glass-air interface at an angle of incidence $$\theta$$. The reflected (R) and transmitted (T) intensities, both as function of $$\theta$$, are plotted. The correct sketch is

A
IIT-JEE 2011 Paper 2 Offline Physics - Wave Optics Question 5 English Option 1
B
IIT-JEE 2011 Paper 2 Offline Physics - Wave Optics Question 5 English Option 2
C
IIT-JEE 2011 Paper 2 Offline Physics - Wave Optics Question 5 English Option 3
D
IIT-JEE 2011 Paper 2 Offline Physics - Wave Optics Question 5 English Option 4
2
IIT-JEE 2009 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-0

Column I shows four situations of standard Young's double slit arrangement with the screen placed far away from the slits S$$_1$$ and S$$_2$$. In each of these cases, S$$_1$$P$$_0$$ = S$$_2$$P$$_0$$, S$$_1$$P$$_1$$ $$-$$ S$$_2$$P$$_1$$ = $$\lambda/4$$ and S$$_1$$P$$_2$$ $$-$$ S$$_2$$P$$_2$$ = $$\lambda/3$$, where $$\lambda$$ is the wavelength of the light used. In the cases B, C and D, a transparent sheet of refractive index $$\mu$$ and thickness t is pasted on slit S$$_2$$. The thickness of the sheets are different in different cases. The phase difference between the light waves reaching a point P on the screen from the two slits is denoted by $$\delta$$(P) and the intensity by I(P). Match each situation given in Column I with the statement(s) in Column II valid for that situation:

Column I Column II
(A) IIT-JEE 2009 Paper 2 Offline Physics - Wave Optics Question 3 English 1 (P) $$\delta ({P_0}) = 0$$
(B) $$(\mu-1)t=\lambda/4$$
IIT-JEE 2009 Paper 2 Offline Physics - Wave Optics Question 3 English 2
(Q) $$\delta ({P_1}) = 0$$
(C) $$(\mu-1)t=\lambda/2$$
IIT-JEE 2009 Paper 2 Offline Physics - Wave Optics Question 3 English 3
(R) $$I({P_1}) = 0$$
(D) $$(\mu-1)t=3\lambda/4$$
IIT-JEE 2009 Paper 2 Offline Physics - Wave Optics Question 3 English 4
(S) $$I({P_0}) > I({P_1})$$
(T) $$I({P_2}) > I({P_1})$$

A
(A)$$\to$$(P), (S); (B)$$\to$$(Q); (C)$$\to$$(T); (D)$$\to$$(R), (S), (T)
B
(A)$$\to$$(P), (S); (B)$$\to$$(R); (C)$$\to$$(T); (D)$$\to$$(R), (S), (T)
C
(A)$$\to$$(P), (S); (B)$$\to$$(Q); (C)$$\to$$(S); (D)$$\to$$(R), (S), (T)
D
(A)$$\to$$(P), (R); (B)$$\to$$(Q); (C)$$\to$$(T); (D)$$\to$$(R), (S), (T)
3
IIT-JEE 2007 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

The figure shows surface XY separating two transparent media, medium -1 and medium -2 . The lines ab and cd represent wavefronts of a light wave traveling in medium -1 and incident on X Y. The lines ef and gh represent wavefronts of the light wave in medium -2 after refraction.

IIT-JEE 2007 Paper 2 Offline Physics - Wave Optics Question 1 English Comprehension

Speed of the light is

A
the same in medium-1 and medium-2
B
larger in medium-1 than in medium-2
C
larger in medium-2 than in medium-1
D
different at b and d
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