List of top Physics Questions

If $ {{\lambda }_{m}} $ denotes the wavelength at which the radiative emission from a black body at a temperature $T \,K$ is maximum, then
When three identical bulbs of $60\, W, 200\, V$ rating are connected in , series to a $200\, V$ supply, the power drawn by them will be
What is the refractive index of a prism whose angle $ A=60{}^\circ $ and angle of minimum deviation $ {{d}_{m}}=30{}^\circ $ ?
A thin prism $R_{1}$ of angle $4^{\circ}$ and refractive index $1.54^{\circ}$ is combined with another thin prism $P_{2}$ of refractive index $1.72$ to produce dispersion without deviation. The angle of $P_{2}$ is
The number of turns in primary coil of a transformer is $20$ and the number of turns in the secondary is $10$. If the voltage across the primary is $220 \,V$, what is the voltage across the secondary?
When a number of small droplets combines to form a large drop, then
An alternating current is given by $I = I _{1} \cos \omega t +I_{2} \sin \omega t$, the root mean square current is given by
An object is placed at a distance equal to focal length of convex mirror. If the focal length of the mirror be $ f, $ then the distance of the image from the pole of the mirror is:
Two identical masses $m$ moving with velocities $u_{1}$ and $u_{2}$ collide perfectly inefasticatiy. Find the loss in energy.
Which of the following has negative temperature coefficient of resistance?
Which of the following has smallest value
Which of the following has the highest moment of inertia when each of them has the same mass and the same radius?
Which of the following is a characteristic of turbulent flow?
Which of the following instruments has minimum least count ?
Which of the following is conserved when light waves interfere ?
Which of the following is correct for light diverging from a point source?
Which of the following is not a perfectly inelastic collision
Which of the following is not a scalar quantity?
Which of the following is not a transducer?
Which of the following is not correct about Bohr model of the hydrogen atom?
Which of the following is not conserved in nuclear reactions ?
Which of the following is NOT the property of light according to the corpuscular theory ?
Which of the following is not true for electromagnetic waves?
Which of the following is the most precise instrument for measuring length?
Which of the following isotopes is used for the treatment of cancer ?