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1
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In biprism experiment, the distance between source and eyepiece is 1.2 m, the distance between two virtual sources is 0.84 mm. Then the wavelength of light used if eyepiece is to be moved transversely through a distance of 2.799 cm to shift 30 fringes is

A
6533 $$\mathop A\limits^o $$
B
6537 $$\mathop A\limits^o $$
C
6535 $$\mathop A\limits^o $$
D
6351 $$\mathop A\limits^o $$
2
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If a star emitting yellow light is accelerated towards earth, then to an observer on earth it will appear

A
becoming orange.
B
shining yellow.
C
gradually changing to blue.
D
gradually changing to red.
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