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1
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

During a cloudy day, a primary and a secondary rainbow may be created, then the :

A
secondary rainbow is due to single internal reflection and is formed above the primary one.
B
primary rainbow is due to double internal reflection and is formed above the secondary one.
C
primary rainbow is due to double internal reflection and is formed below the secondary one.
D
secondary rainbow is due to double internal reflection and is formed above the primary one.
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

If the screen is moved away from the plane of the slits in a Young's double slit experiment, then the :

A
linear separation of the fringes decreases
B
angular separation of the fringes increases
C
angular separation of the fringes decreases
D
linear separation of the fringes increase
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-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

A
$${{2I} \over 3}$$
B
$${I \over 2}$$
C
$${I \over 3}$$
D
$${{3I} \over 4}$$
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

An astronomical refracting telescope is being used by an observer to observe planets in normal adjustment. The focal lengths of the objective and eye piece used in the construction of the telescope are 20 m and 2 cm respectively. Consider the following statements about the telescope :

(a) The distance between the objective and eye piece is 20.02 m

(b) The magnification of the telescope is ($$-$$) 1000

(c) The image of the planet is erect and diminished

(d) The aperture of eye piece is smaller than that of objective

The correct statements are :

A
(a), (b) and (d)
B
(a), (b) and (c)
C
(b), (c) and (d)
D
(c), (d) and (a)
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