A spring 40 mm long is stretched by the application of a force. If 10 N force required to stretch the spring through 1 mm, then work done in stretching the spring through 40 mm is
1. 84J
2. 68J
3. 23J
4. 8J
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo springs with spring constants = 1500 N/m and = 3000 N/m are stretched by the same force. The ratio of potential energy stored in the springs will be
1. 2:1
2. 1:2
3. 4:1
4. 1:4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA block of mass 2 kg moving with velocity of 10 m/s on a smooth surface hits a spring of force constant N/m as shown. The maximum compression in the spring is
1. 5 cm
2. 10 cm
3. 15 cm
4. 20 cm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA body starts moving from rest in straight line under a constant power source. Its displacement in time t is proportional to
(1)
(2) t
(3)
(4)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA block of mass m = 25 kg on a smooth horizontal surface with a velocity =3 meets the spring of spring constant k = 100 N/m fixed at one end as shown in the figure. The maximum compression of the spring and velocity of the block as it returns to the original position respectively are:
1. 1.5 m, -3
2. 1.5 m, 0
3. 1.0 m, 3
4. 0.5 m, 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe velocity, given to the block of mass (m), is to rotate it in a circle of radius l. Calculate the height (h) where the block leaves the circle.
1.
2.
3.
4. None of these
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe relation between velocity (v) and time (t) is , then which one of the following quantity is constant?
1. Force
2. Power
3. Momentum
4. Kinetic Energy
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA particle is moving on the circular path of the radius (R) with centripetal acceleration . Then the correct relation showing power (P) delivered by net force versus time (t) is
1. 1
2. 2
3. 3
4. 4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA steel wire can withstand a load up to 2940 N. A load of 150 kg is suspended from a rigid support. The maximum angle through which the wire can be displaced from the mean position, so that the wire does not break when the load passes through the position of equilibrium, is (2008 E)
1. 30
2. 60
3. 80
4. 85
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology