List of top Physics Questions

If the speed of projection of a projectile is twice its speed when it is at maximum height, then the angle of projection is
If the range of a body projected with a velocity of 60 m/s is \( 180\sqrt{3} \) m, then the angle of projection of the body is (Acceleration due to gravity = 10 m/s\(^2\))
If a body of mass 'm' is projected at an angle '$\theta$' with the horizontal with an initial velocity 'u', then the average torque on the body during the flight is (g - acceleration due to gravity)
The equation of trajectory of a projectile is given by \( y = x - 10x^2 \). Its speed of projection is – \((g = 10 \, \text{m/s}^2)\)
A projectile is fired with an initial speed of 40 m/s at an angle of 30° with the horizontal. What is the maximum height it reaches?
A ball projected vertically upwards with velocity 'v' passes through a point P in its upward journey in a time of 'x' seconds. Then, the time in which the ball again passes through the same point P is
Find the magnetic field inside a solenoid having number of turns 7000, length 1m, and current 1 A.
A charged particle enters a magnetic field with velocity \( v \) at an angle of \( 60^\circ \) with the field. If the time period of the helical path is 2 seconds, the pitch of the helical path is:
What is the path followed by a charge entering a uniform magnetic field with its initial velocity along the direction of the magnetic field?
The magnetic field at all points inside a solenoid carrying electric current:
The region surrounding a magnet in which the influence of that magnet can be detected is called
The magnetic field produced by a current carrying circular loop is strongest at
If the electric current through a copper wire increases, the magnitude of the magnetic field produced at a given point:
There is no accumulation of electric charges at any junction in an electric circuit. Which law states this?
A coil of 100 turns and area 0.01 m² is placed perpendicular to a uniform magnetic field that increases uniformly from 0 to 0.2 T in 0.1 s. What is the magnitude of the induced EMF in the coil?
Which of the following mirrors is used by a dentist to examine a patient's teeth?

A straight conductor carries a current of 10 A. The magnetic field at a distance of 2 cm from the wire is: (μ₀ = 4 × 10⁻⁷ T m/A)

What is the angle between the current and the magnetic field if a conductor carrying 2A current placed in a magnetic field of 4T experiences a force of 10N?
The ratio of the velocity of light in a vacuum to that in a medium is?
A light is incident on a surface having refractive index $ \frac{4}{3} $ and reflected light is completely polarised. $ \left( \tan 53^\circ = \frac{4}{3} \right) $. What is the angle of incidence?
The velocity of light through a medium of relative permittivity 2 and relative permeability 4.5 is (in terms of $ c $):
Chromatic aberration arises in their lens due to:
The distance between the objective and eyepiece of an astronomical telescope when the final image forms at infinity is 62 cm. If the magnification of the telescope is 30, the focal lengths of the objective and eyepiece respectively are:
An object of height 3.6 cm is placed normally on the principal axis of a concave mirror of radius of curvature 30 cm. If the object is at a distance of 10 cm from the principal focus of the mirror, then the height of the real image formed due to the mirror is
A layer of oil of thickness 5.8 cm is floating on a water layer of thickness 8 cm. If the total apparent depth is 10 cm and the refractive index of water is 3/4, then the refractive index of oil is