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General
Easy
Question
A body performs simple harmonic oscillations along the straight line ABCDE with C as the midpoint of AE. Its kinetic energies at B and D are each one fourth of its maximum value. If AE = 2R, the distance between B and D is
The correct answer is:
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Two particles execute SHM of same amplitude of 20 cm with same period along the same line about the same equilibrium position. The maximum distance between the two is 20 cm. Their phase difference in radians is
Two particles execute SHM of same amplitude of 20 cm with same period along the same line about the same equilibrium position. The maximum distance between the two is 20 cm. Their phase difference in radians is
physics-General
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A semicircle conducting ring of radius R is placed in the xy plane, as shown in the figure. A uniform magnetic field is set up along the x–axis. No emf, will be induced in the ring. If
A semicircle conducting ring of radius R is placed in the xy plane, as shown in the figure. A uniform magnetic field is set up along the x–axis. No emf, will be induced in the ring. If
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Two wedges, each of mass m, are placed next to each other on a flat floor. A cube of mass M is balanced on the wedges as shown. Assume no friction between the cube and the wedges, but a coefficient of static friction 
between the wedges and the floor. What is the largest M that can be balanced as shown without motion of the wedges?
Two wedges, each of mass m, are placed next to each other on a flat floor. A cube of mass M is balanced on the wedges as shown. Assume no friction between the cube and the wedges, but a coefficient of static friction between the wedges and the floor. What is the largest M that can be balanced as shown without motion of the wedges?
physics-General
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A string is wrapped round a log of wood and it is pulled with a force F as shown in the figure Choose the correct statement(s).
I Tension T in the string decreases with increase in 
, II Tension 
A string is wrapped round a log of wood and it is pulled with a force F as shown in the figure Choose the correct statement(s).
I Tension T in the string decreases with increase in , II Tension
physics-General
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Find the incorrect statement/s for a concave mirror producing a virtual image of the object.
Find the incorrect statement/s for a concave mirror producing a virtual image of the object.
physics-General
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The load versus elongation graph for four wires of the same material is shown in the figure. The thinnest wire is represented by the line
The load versus elongation graph for four wires of the same material is shown in the figure. The thinnest wire is represented by the line
physics-General
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In the figure shown if the object ‘O’ moves towards the plane mirror, then the image I (which is formed after successive reflections from M1 & M2 respectively) will move:
In the figure shown if the object ‘O’ moves towards the plane mirror, then the image I (which is formed after successive reflections from M1 & M2 respectively) will move:
physics-General
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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
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
physics-General
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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
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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The P-V graph of two different samples having masses m1 and m2 of a gas for isothermal processes are shown in figure at temperatures T1 and T2 respectively
The P-V graph of two different samples having masses m1 and m2 of a gas for isothermal processes are shown in figure at temperatures T1 and T2 respectively
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When objects at different distances are seen by the eye, which of the following remain constant?
When objects at different distances are seen by the eye, which of the following remain constant?
physics-General
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The energy of a tungsten atom with a vacancy in L shell is 11.3 KeV. Wavelength of 
photon for tungsten is 21.3 pm. If a potential difference of 62 KV is applied across the x-rays tube following characteristic x-rays will be produced.
The energy of a tungsten atom with a vacancy in L shell is 11.3 KeV. Wavelength of photon for tungsten is 21.3 pm. If a potential difference of 62 KV is applied across the x-rays tube following characteristic x-rays will be produced.
physics-General
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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 :
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
A resistance & ideal inductor is connected in the A.C. circuit. Here are the reading of three hotwire ideal voltmeter
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