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

For the same angle of incidence, the angle of refraction in four media A, B, C and D are 25°, 30°, 35° and 40° respectively. The speed of light is least in medium ______.

Which one of the following is NOT the correct formula for refractive index of glass w.r.t. air (_aμ_g) (i = angle of incidence, r = angle of refraction)

Three identical charges are placed on three vertices of a square. If the force acting between q₁ and q₂ is F₁₂ and between q₁ and q₃ is f₁₃ then `"F"_13/"F"_12` = ____________.

For total internal reflection to take place, the angle of inddence i and the refractive index µ of the medium must satisfy the inequality ____________.

The angle of minimum deviation produced by a thin glass prism in air is 'δ'. If that prism is immersed in water, the angle of minimum deviation will be ______.

( _aμ_g = refractive index of glass w.r.t, air _aμ_w = refractive index of water w.r.t. air)

For a ray of light, the critical angle is minimum when it travels from ______.

For a photocell, work function is 'W₀' and stopping potential is 'v'. The wavelength of the incident radiation is (h =Planck's constant, C = velocity of light, e = charge of electron) ____________.

Let a force `vec"F"=-"F"hat"k"` acts on the origin of Cartesian frame of reference. The moment of force about a point (1, -1) will be ______.

Out of the following statements which one is correct?

Two buses P and Q start from a point at the same time and move in a straight line and their positions are represented by X_p(t) = αt+ βt² and X_Q(t) =ft - t². At what time, both the buses have same velocity?

The equations of two waves are given by :
y₁ 5 sin2π (x - vt) cm

y₂ 3 sin2π (x - vt + 1.5) cm

These waves are simultaneously passing through a string. The amplitude of the resulting wave is ______.

A ray of light passes from vacuum into a medium of refractive index µ, the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is ______.

A given ray of light suffers minimum deviation in an equilateral prism P. Additional prism Q and R of identical shape and of the same material as P are now added as shown in the figure. The ray will now suffer ______.

The angle made by incident ray of light with normal of the reflecting surface is called ______.

A square frame ABCD is formed by four identical rods each of mass 'm' and length 'ℓ'. This frame is in X-Y plane such that side AB coincides with X-axis and side AD along Y-axis. The moment of inertia of the frame about X-axis is ______.

In Young's double-slit experiment, the intensity at a point where the path difference is `lambda/4` is l. If the maximum intensity is l₀, and then the ratio of `l_0/l` is ______.

`(cos45^circ = 1/sqrt2 = sin45^circ)`

When two coherent monochromatic light beams of intensities I and 4I are superimposed, then what are the maximum and minimum possible intensities in the resulting beams?

A particle executing SHM has velocities v₁ and v₂ at distances x₁ and x₂ respectively, from the mean position. Its time period is ______.

Find the value of θ in the given figure.

In a common emitter amplifier, the input resistance is 1000 Ω, the peak value of Input signal voltage is 5 mV, and β = 60. The peak value of output current is