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

The incorrect statement about the property of a Zener diode is :

A
p and n regions of Zener diode are heavily doped
B
Zener voltage remains constant at breakdown
C
It is designed to operate under reverse bias
D
Depletion region formed is very wide
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

A gravitational field is present in a region and a mass is shifted from A to B through different paths as shown. If W1, W2 and W3 represent the work done by the gravitational force along the respective paths, then :

NEET 2022 Phase 2 Physics - Gravitation Question 6 English

A
W1 < W2 < W3
B
W1 = W2 = W3
C
W1 > W2 > W3
D
W1 > W3 > W2
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

A standard filament lamp consumes 100 W when connected to 200 V ac mains supply. The peak current through the bulb will be :

A
2 A
B
0.707 A
C
1 A
D
1.414 A
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

The terminal velocity of a copper ball of radius 5 mm falling through a tank of oil at room temperature is 10 cm s$$-$$1. If the viscosity of oil at room temperature is 0.9 kg m$$-$$1 s$$-$$1, the viscous drag force is :

A
4.23 $$\times$$ 10$$-$$6 N
B
8.48 $$\times$$ 10$$-$$3 N
C
8.48 $$\times$$ 10$$-$$5 N
D
4.23 $$\times$$ 10$$-$$3 N
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