Physics questions
20027 published questions with worked solutions.
- A transmitting antenna has a height of 320 m and that of receiving antenna is 2000 m. The maximum distance between them for...Not in JEE or NEET syllabus
- Water drops are falling from a nozzle of a shower onto the floor, from a height of 9.8 m. The drops fall at a regular interval of...
- Two discs have moments of inertia I_1 and I_2 about their respective axes perpendicular to the plane and passing through the...
- If the rms speed of oxygen molecules at 0°C is 160 m/s, find the rms speed of hydrogen molecules at 0°C.
- A mass of 50 kg is placed at the centre of a uniform spherical shell of mass 100 kg and radius 50 m. If the gravitational...
- For full scale deflection of total 50 divisions, 50 mV voltage is required in galvanometer. The resistance of galvanometer if its...
- A monochromatic neon lamp with wavelength of 670.5 nm illuminates a photo-sensitive material which has a stopping voltage of 0.48...
- Match List I with List II. List-I: (a) R_H (Rydberg constant) (b) h(Planck's constant) (c) (Magnetic field energy density) (d)...
- If force (F), length (L) and time (T) are taken as the fundamental quantities. Then what will be the dimension of density?
- A coaxial cable consists of an inner wire of radius 'a' surrounded by an outer shell of inner and outer radii 'b' and 'c'...
- The height of victoria falls is 63 m. What is the difference in temperature of water at the top and at the bottom of fall? [Given...
- A player kicks a football with an initial speed of 25 ms^ -1 at an angle of 45° from the ground. What are the maximum height and...
- The light waves from two coherent sources have same intensity I_1=I_2=I_0. In inteference pattern the intensity of light at...
- A heat engine operates between a cold reservoir at temperature T_2 = 400 K and a hot reservoir at temperature T_1. It takes 300 J...
- Two simple harmonic motion, are represented by the equations y_1=10 (3 t+ 3 ) y_2=5( 3 t+ 3 3 t). The Raio of amplitude of y_1 to...
- X different wavelengths may be observed in the spectrum from a hydrogen sample if the atoms are exited to states with principal...
- A zener diode of power rating 2W is to be used as a voltage regulator. If the zener diode has a breakdown of 10 V and it has to...
- An ac circuit has an inductor and a resistor of resistance R in series, such that X_L = 3R. Now, a capacitor is added in series...
- A plane electromagnetic wave with frequency of 30 MHz travels in free space. At particular point in space and time, electric...
- A tuning fork is vibrating at 250 Hz. The length of the shortest closed organ pipe that will resonate with the tuning fork will...