Physics-
General
Easy
Question
The force required to stretch a spring varies with the distance as shown in the figure. If the experiment is performed with the above spring of half length, the line OA will
- Shift towards F–axis
- Shift towards X–axis
- Remain as it is
- Become double in length
The correct answer is: Remain as it is
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Physics-General
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A bar magnet of magnetic moment 3.0 A-m2 is placed in a uniform magnetic induction field of 2 × 10–5 T. If each pole of the magnet experiences a force of 6 x 10–4 N, the length of the magnet is
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The figure below shows the north and south poles of a permanent magnet in which n turn coil of area of cross-section A is resting, such that for a current i passed through the coil, the plane of the coil makes an angle q with respect to the direction of magnetic field B. If the plane of the magnetic field and the coil are horizontal and vertical respectively, the torque on the coil will be
The figure below shows the north and south poles of a permanent magnet in which n turn coil of area of cross-section A is resting, such that for a current i passed through the coil, the plane of the coil makes an angle q with respect to the direction of magnetic field B. If the plane of the magnetic field and the coil are horizontal and vertical respectively, the torque on the coil will be
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60% of a first order reaction was completed in 60 min. The time taken for reactants to decompose to half of their original amount will be
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Chemistry-General
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Products, the rate law is 
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Chemistry-General
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For the chemical reaction 
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Chemistry-General
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,
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Chemistry-General
