An alpha particle and a deuteron enter a region of the magnetic field which is perpendicular to the velocity. If the kinetic energies are equal,... View Article
The angle of incidence from air to glass at point “O” on the hemispherical glass slab is (a) 45° (b) 90° (c) 0° (d) 180° Answer: (c) 0°... View Article
Two forces with magnitude 10 dynes each are acting as shown in the diagram, then their resultant magnitude is (a) 20 dynes (b) 10 dynes (c) 5... View Article
A particle moves in a circle with a constant speed of 10 m/s. the magnitude of change in the velocity when the angular displacement of the... View Article
In a closed circuit, the electric current at any instant of time t (in s) is given by an equation i = (4 – 0.08t). How many electrons flow... View Article
A ray of light is travelling from glass to air. Refractive index of glass is 3/2. If the angle of incidence is 57º, then the deviation of the ray... View Article
The angle of incidence from air to glass at the point o on the hemispherical glass slab is (a) 180 degrees (b) 90 degrees (c) 0 degrees (d) 45... View Article
A person is having hypermetropic eye whose near point is at 100 cm. What is the power of the spectacles required for that person? (a) +1D (b) -1D... View Article
When a positively charged particle enters a uniform magnetic field with uniform velocity is trajectory can be (a) A circle (b) A straight line... View Article
Two satellites are orbiting around the earth in circular orbits of same radii. One of them is 10 times greater in mass than the other. Their... View Article
An engine supplies a constant power ‘p’ to the automobile of mass m starting from rest. At an instant of time t, then which of the following is... View Article
A uniform electric field e exists between the plates a and b and a uniform magnetic field b exists between plates c and d. A rectangular coil X... View Article
A sinusoidal voltage v = 200 sin 314t is applied to a resistor of 10ω resistance. Calculate (i) RMS value of the voltage (ii) RMS value of the... View Article
The surface energy of a liquid drop is u it is sprayed into 1000 equal droplets, then total surface energy becomes - (a) u (b) 10 u (c) 100 u... View Article
The magnetic susceptibility of a medium is 0.825. Its relative permeability is (a) 1.825 (b) 2.085 (c) 4.885 (d) 0.825 Answer: (a) 1.825... View Article
The electron drift speed is small and stars of the electron is also small but still we obtain a large current in the conductor this is due to (a)... View Article
(a) Both assertion and reason are true (b) Both assertion and reason are false (c) Assertion is true but reason is false (d) Assertion is false... View Article
