List of top Physics Questions

The substance which shows practically no elastic after effect is
The substance which contracts on heating is
The stress-strain graphs for two materials A and B are shown in figure. (Assume same scale)
The slope of the velocity time graph for retarded motion is
The slope of the stress verses strain curve is :
The scientific name of banyan is written as Ficus benghalensis L. Which of the following statements is correct regarding this ?
The restoring couple for a magnet oscillating in the uniform magnetic field is provided by
"The rate of loss of heat $-dQ/dt$ of the body is directly proportional to the temperature difference $\Delta T = (T_2 - T_1)$ of the body and surroundings". This statement is
The radio waves of frequency $30\, MHz$ to $300 \,MHz$ belong to
The $r_+ / r_-$ ratio of ZnS is 0.402. Pick out the false statements of the following
The pressure exerted by $5$ moles of a real gas in one litre vessel at $47^??$ is $(a = 3.592 \,atm\, L^2\, mol^{-2}$, $b = 0.0427\, L\, mol^{-1})$
The length of a seconds pendulum is
The mobility of free electrons (charge= e, mass= m and relaxation time = $\tau$) in a metal is proportional to
The minimum and maximum distance of a satellite from the center of earth is 2R and 4R respectively. Its maximum speed is
The maximum amplitude of an amplitude modulated wave is found to be $15\, V$ while its minimum amplitude is found to be $3 \,V$. The modulation index is
The hot wire instrument measures :
The heat of formation of water is 260 kJ. How much $H_2O$ is decomposed by 130 kJ of heat ?
The heat of neutralisation is maximum when
The gravitational field in a region is given by $\bar{E}=(4i+j)N/kg.$ Workdone this field is zero when a particle is moved along the line
The graph showing the dependence of intensity of transmitted light on the angle between polariser and analyser, is
The gravitational potential energy of a body in the gravitational field of earth is minimum
The force required to stretch a steel wire of $1\,s cm$ cross-section to $1.1$ times, its length would be ($Y=2 \times 10^ {11} Nm ^{-2}$).
The following configuration of gates is equivalent to
The figure below shows the plot of $\frac{pV}{nT}$ versus p for oxygen gas at two different temperatures. Read the following statements concerning the above curves (i) The dotted line corresponds to the 'ideal' gas behaviou (ii) $T_1 > T_2$ (iii) The value of $\frac{pV}{nT}$ at the point where the curves meet on the y-axis is the same for all gases. Which of the above statements is true?
The equivalent capacitance between the points A and B in the following circuit is: