List of top Physics Questions

The force between two point charges separated by a distance \(d\) is \(F\). If one charge is moved away by a distance \(d\), then the new force is:
If a p-n junction diode is forward biased, then:
Young's modulus and shear modulus are applicable for:
In a Carnot engine, efficiency is dependent on ________?
The ratio of the angular speed of the minute hand to the second hand of a watch is?
Number of degrees of freedom for the monoatomic gas molecule is?
After a collision, two particles move together, then the collision is?
Brewster's angle should lie between?
Find the resistance required to be connected to a galvanometer of resistance \(100 \, \Omega\) with a full scale deflection of 1mA into a voltmeter of range 1V.
Which of the following statement is true?
How can we decrease the effective capacitance of a parallel plate capacitor?
\( M^0 L T^{-1} \) is the dimension of ___________?
Relation between the drift velocity and an electric field is ----?
What is the maximum wavelength to excite a hydrogen atom?
A solid sphere, hollow sphere, and solid cylinder start sliding from an inclined plane without rolling. Then the ratio of time taken by them to reach the ground is?
A liquid of density \( d \) is moving down in a vessel of height \( h \) with an acceleration \( a<g \). Then the pressure at the bottom is?
A body of mass 0.8kg moves with velocity \( v = 2x^2 + 2 \, \text{m/s} \). What is the work done during its motion from \( x = 0 \) to \( x = 2 \, \text{m} \)?
Tension of a rope when a man of mass \( m \) climbs up or down with an acceleration \( a<g \)?
The fundamental frequency of a string of length \( l \) is \( n \). The string is cut into 3 parts \( l_1, l_2, \) and \( l_3 \), each having fundamental frequency \( n_1, n_2, n_3 \). Then, what is the relationship between \( n_1, n_2, n_3 \)?
De Broglie wavelength of a quantum photon having energy \( E \)?
A body of mass 0.8kg moves with velocity \( v = 2x^2 + 2 \, \text{m/s} \). What is the work done during its motion from \( x = 0 \) to \( x = 2 \, \text{m} \)?
If the half-life of \( D \) is 1500 years and \( B \) is 2000 years, what is the mean lifetime?
If the frequency of the cyclotron is doubled, then the radius becomes?
Relations between the speed of X-ray, gamma-ray, and UV rays when they travel in a vacuum.
A graph shows the velocity of an object as a function of time. Describe the motion of the object in detail, including its acceleration and displacement, at different points in time. What does the area under the curve represent?