Physics questions
20027 published questions with worked solutions.
- Amplitude modulated wave is represented by V_AM = 10[1 + 0.4 (2 10^ 4 t)] (2 10^ 7 t). The total bandwidth of the amplitude...Not in JEE or NEET syllabus
- A student in the laboratory measures thickness of a wire using screw gauge. The readings are 1.22 mm, 1.23 mm, 1.19 mm and 1.20...
- In a Young's double slit experiment, an angular width of the fringe is 0.35° on a screen placed at 2 m away for particular...
- A tuning fork of frequency 340 Hz resonates in the fundamental mode with an air column of length 125 cm in a cylindrical tube...
- A liquid of density 750 kgm^ -3 flows smoothly through a horizontal pipe that tapers in cross-sectional area from A_ 1 = 1.2 10^...
- Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Product of...
- Motion of a particle in x-y plane is described by a set of following equations x = 4 ( /2 - t) m and y = 4 ( t) m. The path of...
- Match List-I with List-II List-I: A. Moment of inertia of solid sphere of radius R about any tangent B. Moment of inertia of...
- Two planets A and B of equal mass are having their period of revolutions T_A and T_B such that T_A = 2T_B. These planets are...
- A water drop of diameter 2 cm is broken into 64 equal droplets. The surface tension of water is 0.075 N/m. In this process the...
- Given below are two statements Statement-I: When amount of an ideal gas undergoes adiabatic change from state (P_ 1 , V_ 1 , T_ 1...
- Given below are two statements Statement-I: A point charge is brought in an electric field. The value of electric field at a...
- A radar sends an electromagnetic signal of electric field (E_ 0 ) = 2.25 V/m and magnetic field (B_ 0 ) = 1.5 10^ -8 T which...
- The aperture of the objective is 24.4 cm. The resolving power of this telescope, if a light of wavelength 2440 Å is used to see...
- The de Broglie wavelengths for an electron and a photon are _ e and _ p respectively. For the same kinetic energy of electron and...
- The Q-value of a nuclear reaction and kinetic energy of the projectile particle, K_p are related as :
- For using a multimeter to identify diode from electrical components, choose the correct statement out of the following about the...
- The velocity of sound in a gas, in which two wavelengths 4.08 m and 4.16 m produce 40 beats in 12 s, will be:
- The position vector of 1 kg object is r = (3 i - j ) m and its velocity v = (3 j + k ) ms^ -1 . The magnitude of its angular...
- A man of 60 kg is running on the road and suddenly jumps into a stationary trolly car of mass 120 kg. Then, the trolly car starts...