1
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a Fraunhofer diffraction at a single slit of width 'd' and incident light of wavelength $$5500 \mathop A\limits^o$$, the first minimum is observed at an angle $$30^{\circ}$$. The first secondary maxima is observed at an angle $$\theta$$, equal to

A
$$\sin ^{-1}\left(\frac{1}{4}\right)$$
B
$$\sin ^{-1}\left(\frac{3}{4}\right)$$
C
$$\sin ^{-1}\left(\frac{\sqrt{3}}{2}\right)$$
D
$$\sin ^{-1}\left(\frac{1}{\sqrt{2}}\right)$$
2
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two monochromatic beams of intensities I and 4 I respectively are superposed to form a steady interference pattern. The maximum and minimum intensities in the pattern are

A
$$4 \mathrm{I}$$ and I
B
9 I and 3I
C
5 I and 3 I
D
9 I and I
3
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The path difference between two interfering light waves meeting at a point on the screen is $$\left(\frac{57}{2}\right) \lambda$$. The bond obtained at that point is

A
29th bright band
B
57th dark band
C
57th bright band
D
29th dark band
4
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment, in an interference pattern, a minimum is observed exactly in front of one slit. The distance between the two coherent sources is '$$\mathrm{d}$$' and '$$\mathrm{D}$$' is the distance between the source and screen. The possible wavelengths used are inversely proportional to

A
D, 5D, 9D, ....
B
$$\mathrm{D}, 3 \mathrm{D}, 5 \mathrm{D}, \ldots$$
C
$$3 \mathrm{D}, 4 \mathrm{D}, 5 \mathrm{D}, \ldots$$
D
$$3 \mathrm{D}, 7 \mathrm{D}, 10 \mathrm{D}, \ldots$$
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