This test consists of AIEEE physics questions to help you practice for the real AIEEE Physics section.
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The bob of a simple pendulum is pulled to a position in xz plane and is given a velocity , such that it whirls to rise upto the level of suspension. The value of will be:
none
Two projectile are launched from (0,0) at projection angle and with same speed. Taky Y-axis pointing upward and X-axis horizontal. Each projectile has the acceleration due to gravity. The locus of one with respect the other projectile will be
y = x
A light rigid triangle is fixed to a cart of mass M free to move horizontally. A bead of mass m is released from the left corner of triangle. The acceleration ‘a’ of the cart will be
g
zero
A uniform rod of length l rests on a smooth horizontal table. An impulsive force acts on the rod at a distance x from its centre of mass. If the farther end from the action point of the force receives no velocity the value of x will be
l/6
none of these
l/18
l/2
A hypothetical planet produces gravitational field intensity . A uniform rod of length L lies between x=0 and x=L. The distance between centre of mass and the centre of gravity of the rod will be
L/2
L/18
0
L/4
In carbon-nitrogen nuclear fusion cycle, protons are fused to form a helium nucleus. Positrons releases some energy. The number of protons fused and the number of positrons released in this process respectively are
2, 4
4, 2
4, 4
4, 6
A piece of copper and another of germanium are cooled from room temperature to 80 k. The resistance of
copper decreases and germanium increases
each of them decreases
copper increases and germanium decreases
each of them increases
The activity of a radioactive element decreases to one third of the original activity in a period of nine years. After a further lapse of nine years its activity will be
A beam of light of wavelength 600 mm from a distance source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen 2m away. The distance between the first dark frings on either side of the central bright frings is
2.4 cm
1.2 mm
2.4 mm
1.2 cm
A convex lens a of focal length 20 cm and a concave lens B of focal length 5 cm are kept along the same axis with a distance d between them. If a parallel beam of light falling on A leaves B as a parallel beam then the distance d in cm will be
30
15
25
50
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