A coin is placed in a beaker filled with water up to a height of 12 cm. It is viewed from above. By what height through does the coin appear to... View Article
50 g of water at 20ºC is mixed with 50 g of water at 40ºC. The temperature of the mixture in equilibrium is (a) 30ºC (b) 40ºC (c) 50ºC (d) 75ºC... View Article
The current through an inductor of 1H is given by i = 3t sin t. The voltage across the inductor of 1 H is a) 3 (sint + 3cost) b) 3(sint + cost)... View Article
A cylindrical copper rod is reformed to twice its original length. The resistance between its ends before the change was r, now its new... View Article
An electric dipole is placed at the centre of an imaginary sphere. Which of the following option is/are correct? a) The electric field is zero at... View Article
It is possible to project a body with a given speed in two possible ways so that it has the same horizontal range the product of time taken by it... View Article
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
