NEET 2022 Phase 2 | Wave Optics Question 9 | Physics

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

After passing through a polariser a linearly polarised light of intensity I is incident on an analyser making an angle of 30$$^\circ$$ with that of the polariser. The intensity of light emitted from the analyser will be

$${{2I} \over 3}$$

$${I \over 2}$$

$${I \over 3}$$

$${{3I} \over 4}$$

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

In a Young's double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nm wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would observe in the same region of the screen is

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

Assume that light of wavelength 600 nm is coming from a star. The limit of resolution of telescope whose objective has a diameter of 2 m is :

1.83 $$ \times $$ 10^-7 rad

7.32 $$ \times $$ 10^-7 rad

6.00 $$ \times $$ 10^-7 rad

3.66 $$ \times $$ 10^-7 rad

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

In Young's double slit experiment, if the separation between coherent sources is halved and the distance of the screen from the coherent sources is doubled, then the fringe width becomes :

half

four times

one-fourth

double

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