Physics-
General
Easy
Question
A uniform ring is rotating about vertical axis with angular velocity 
initially. A point insect (S) having the same mass as that of the ring starts walking from the lowest point P1 and finally reaches the point P2 (as shown in figure). The final angular velocity of the ring will be equal to
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- none
The correct answer is:
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Which of the following combinations of three dimensionally different physical quantities P, Q, R can never be a meaningful quantity?
Which of the following combinations of three dimensionally different physical quantities P, Q, R can never be a meaningful quantity?
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A beam of white light is incident on a combinations of prisms with equal angles. In the out going beam the rainbow colours are observed as shown. Then
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When objects at different distances are seen by the eye, which of the following remain constant?
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The energy of a tungsten atom with a vacancy in L shell is 11.3 KeV. Wavelength of 
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The figure shows a graph between 
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The figure shows a graph between and ln | n |, where An is the area enclosed by the nth orbit in a hydrogen like atom. The correct curve is :
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A resistance & ideal inductor is connected in the A.C. circuit. Here 
are the reading of three hotwire ideal voltmeter
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The A.C. circuit shown in figure. Find the frequency (
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In the figure the reading of voltmeter is
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In the figure, if 
?
In the figure, if ?
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A block of mass ‘m’ is attached to a spring in natural length of spring constant ‘k’. The other end A of the spring is moved with a constant velocity v away from the block. Find the maximum extension in the spring
A block of mass ‘m’ is attached to a spring in natural length of spring constant ‘k’. The other end A of the spring is moved with a constant velocity v away from the block. Find the maximum extension in the spring
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The switch in the circuit pictured is in position a for a long time. At t = 0 the switch is moved from a to b. The current through the inductor will reach its first maximum after moving the switch in a time:
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The circuit shown in figure consisting of three identical lamps and two coils is connected to a direct current source. The ohmic resistance of the coils is negligible. After some time switch S is opened. Which of the following statement(s) is/are correct for the instant immediately after opening the switch?
The circuit shown in figure consisting of three identical lamps and two coils is connected to a direct current source. The ohmic resistance of the coils is negligible. After some time switch S is opened. Which of the following statement(s) is/are correct for the instant immediately after opening the switch?
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The diagram shows a solenoid carrying time varying current I = I0 t (I0 is constant) On the axis of this solenoid a conducting ring is being placed as shown in figure. The mutual inductance of the ring and the solenoid is M and self inductance of the ring is L. If the resistance of the ring is R then the maximum current which can flow through the ring is
The diagram shows a solenoid carrying time varying current I = I0 t (I0 is constant) On the axis of this solenoid a conducting ring is being placed as shown in figure. The mutual inductance of the ring and the solenoid is M and self inductance of the ring is L. If the resistance of the ring is R then the maximum current which can flow through the ring is
physics-General
