MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Physics

A particle moves along a circular path of radius 'r' with uniform speed 'V'. The angle described by the particle in one second is ______.

In the case of conical pendulum, if 'T' is the tension in the string and 'θ' is the semi-vertical angle of cone, then the component which provides necessary centripetal force is ______.

A small quantity of paramagnetic liquid is taken in a watch - glass and kept on two dissimilar magnetic poles. The liquid ____________.

A domain in a ferromagnetic substance is in the form of a cube of side length 1 µm. If it contains 6 x 10¹⁰ atoms and each atomic dipole has a dipole moment of 7 x 10^-24 Am², then magnetization of the domain is ____________.

The velocity of sound at 0 °C is v0. What will be its velocity at 819 °C?

In Young's double-slit experiment, if the two sources of light are very wide, then ______.

In Young's double slit experiment, for wavelength λ₁ the n^th bright fringe is obtained at a point P on the screen. Keeping the same setting, source of light is replaced by wavelength λ₂ and now (n + 1)^th bright fringe is obtained at the same point P on the screen. The value of n is ______.

Young's double slit experiment is performed in water, instead of air, then fringe width ______.

Two waves with same amplitude and frequency superpose at a point. The ratio of resultant intensities when they arrive in phase to that when they arrive 90° out of phase is ______.

`[cos  pi/2=0]`

A double slit experiment is immersed in water of refractive index 1.33. The slit separation is 1 mm, distance between slit and screen is 1.33 m. The slits are illuminated by a light of wavelength 6300 Å. The fringe width is ______.

The radius of the orbit of a geostationary satellite is (mean radius of the earth R, angular velocity about an axis in ω and acceleration due to gravity on earth's surface is (g) ______.

In Young's double-slit experiment, the distance between the slits is 3 mm and the slits are 2 m away from the screen. Two interference patterns can be obtained on the screen due to light of wavelength 480 nm and 600 run respectively. The separation on the screen between the 5^th order bright fringes on the two interference patterns is ______

In Young's double-slit experiment, the distance between the slits is 3 mm and the slits are 2 m away from the screen. Two interference patterns can be obtained on the screen due to light of wavelength 480 nm and 600 run respectively. The separation on the screen between the 5^th order bright fringes on the two interference patterns is ______

In an interference experiment, the intensity at a point is `(1/4)^"th"` of the maximum intensity. The angular position of this point is at ____________. 
(cos 60° = 0.5, `lambda` = wavelength of light, d = slit width)

Two coherent sources of intensities I₁ and I₂ produce an interference pattern on the screen. The maximum intensity in the interference pattern is ______

A flat curved road on highway has radius of curvature 400 m. A car rounds the curve at a speed of 24 m/s. The minimum value of coefficient of friction to prevent car from sliding is ______.

(take g = 10 m/s²)

A particle rotates in horizontal circle of radius ‘R’ in a conical funnel, with speed ‘V’. The inner surface of the funnel is smooth. The height of the plane of the circle from the vertex of the funnel is ______.

(g = acceleration due to gravity)

A particle executes uniform circular motion with angular momentum 'L'. Its rotational kinetic energy becomes half when the angular frequency is doubled. Its new angular momentum is ______.

Which graph shows the variation of magnetic susceptibility (`chi`) with magnetizing field (H) for a paramagnetic substance?

The interference pattern is obtained with two coherent light sources of intensity ratio 4 : 1. And the ratio `("I"_"max" - "I"_"min")/("I"_"max" + "I"_"min")` is `5/x`. Then the value of x will be equal to ______.