1
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A beam of light is incident on a glass plate at an angle of $$60^{\circ}$$. The reflected ray is polarized. If angle of incidence is $$45^{\circ}$$ then angle of refraction is

A
$$\sin ^{-1}\left(\frac{1}{\sqrt{6}}\right)$$
B
$$\sin ^{-1}\left(\frac{1}{\sqrt{3}}\right)$$
C
$$\sin ^{-1}\left(\sqrt{\frac{3}{2}}\right)$$
D
$$\cos ^{-1}\left(\sqrt{\frac{3}{2}}\right)$$
2
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A beam of light of wavelength $$600 \mathrm{~nm}$$ from a distant source falls on a single slit $$1 \mathrm{~mm}$$ wide and the resulting diffraction pattern is observed on a screen $$2 \mathrm{~m}$$ away. The distance between the first dark fringe on either side of the central bright fringe is

A
1.2 mm
B
2.4 mm
C
1.2 cm
D
2.4 cm
3
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment, the fifth maximum with wavelength '$$\lambda_1$$' is at a distance '$$y_1$$' and the same maximum with wavelength '$$\lambda_2$$' is at a distance '$$y_2$$' measured from the central bright band. Then $$\frac{y_1}{y_2}$$ is equal to [D and $$d$$ are constant]

A
$$\frac{\lambda_1}{\lambda_2}$$
B
$$\frac{\lambda_2}{\lambda_1}$$
C
$$\frac{\lambda_1^2}{\lambda_2^2}$$
D
$$\frac{\lambda_2^2}{\lambda_1^2}$$
4
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment, green light is incident on two slits. The interference pattern is observed on a screen. Which one of the following changes would cause the observed fringes to be more closely spaced?

A
Reducing the separation between the slits
B
Using blue light instead of green light
C
Using red light instead of green light
D
Moving the screen away from the slits
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