1
MHT CET 2021 21th September Morning Shift
+1
-0

In biprism experiment, 21 fringes are observed in a given region using light of wavelength 4800 $$\mathop A\limits^o$$. If light of wavelength 5600 $$\mathop A\limits^o$$ is used, the number of fringes in the same region will be

A
18
B
24
C
14
D
21
2
MHT CET 2021 21th September Morning Shift
+1
-0

A double slit experiment is immersed in water of refractive index 1.33. The slit separationis 1 $$\mathrm{mm}$$ and the distance between slit and screen is $$1.33 \mathrm{~m}$$. The slits are illuminated by a light of wavelength $$6300\,\mathop A\limits^o$$. The fringewidth is

A
$$4.9 \times 10^{-4} \mathrm{~m}$$
B
$$6.3 \times 10^{-4} \mathrm{~m}$$
C
$$8.6 \times 10^{-4} \mathrm{~m}$$
D
$$5.8 \times 10^{-4} \mathrm{~m}$$
3
MHT CET 2021 20th September Evening Shift
+1
-0

In a single slit diffraction pattern, the distance between the first minimum on the left and the first minimum on the right is $$5 \mathrm{~mm}$$. The screen on which the diffraction pattern is obtained is at a distance of $$80 \mathrm{~cm}$$ from the slit. The wavelength used is 6000 $$\mathop A\limits^o$$. The width of the silt is

A
0.096 mm
B
0.576 mm
C
0.192 mm
D
0.384 mm
4
MHT CET 2021 20th September Evening Shift
+1
-0

In Young's double slit experiment, with a source of light having wavelength $$6300 \mathop A\limits^o$$, the first maxima will occur when the

A
path difference is $$9200 \mathop A\limits^o$$
B
phase difference is $$\mathrm{n}$$ radian
C
phase difference is $$\frac{\pi}{2}$$ radian.
D
path difference is $$6300 \mathop A\limits^o$$
MHT CET Subjects
Physics
Mechanics
Optics
Electromagnetism
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
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Coordinate Geometry
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