1
NEET 2023
MCQ (Single Correct Answer)
+4
-1
The potential energy of a long spring when stretched by $$2 \mathrm{~cm}$$ is U. If the spring is stretched by $$8 \mathrm{~cm}$$, potential energy stored in it will be :
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
The restoring force of a spring with a block attached to the free end of the spring is represented by
A
B
C
D
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
An electric lift with a maximum load of 2000 kg (lift + passengers) is moving up with a constant speed of 1.5 ms$$-$$1. The frictional force opposing the motion is 3000 N. The minimum power delivered by the motor to the lift in watts is : (g = 10 ms$$-$$2)
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
The energy that will be ideally radiated by a 100 kW transmitter in 1 hour is
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