1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
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The angular speed of a fly wheel moving with uniform angular acceleration changes from 1200 rpm to 3120 rpm in 16 seconds. The angular acceleration in rad/s2 is

A
2$$\pi$$
B
4$$\pi$$
C
12$$\pi$$
D
104$$\pi$$
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
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NEET 2022 Phase 1 Physics - Semiconductor Electronics Question 19 English

In the given circuits (a), (b) and (c), the potential drop across the two p-n junctions are equal in

A
Circuit (a) only
B
Circuit (b) only
C
Circuit (c) only
D
Both circuits (a) and (c)
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
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A biconvex lens has radii of curvature, 20 cm each. If the refractive index of the material of the lens is 1.5, the power of the lens is

A
+2 D
B
+20 D
C
+5 D
D
Infinity
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
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As the temperature increases, the electrical resistance

A
Increases for both conductors and semiconductors
B
Decreases for both conductors and semiconductors
C
Increases for conductors but decreases for semiconductors
D
Decreases for conductors but increases for semiconductors
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