List of top Physics Questions asked in MHT CET

When a lens of refractive index $\mu_1$ is placed in a liquid of refractive index $\mu_2$, the lens looks to be disappeared only if

A simple pendulum oscillates with an angular amplitude $\theta$. If the maximum tension in the string is twice the minimum tension, then $\theta$ is

The resolving power of a telescope depends on

Which one of the following statements about the angle of contact $(\theta)$ is wrong?

There are three needles $N_1$, $N_2$ and $N_3$ made of a ferromagnetic, a paramagnetic and a diamagnetic substance respectively. When a magnet is brought close to them, then it will

In the case of earth, mean radius is $R$, acceleration due to gravity on the surface is $g$, angular speed about its own axis is $\omega$. What will be the radius of the orbit of a geostationary satellite?

When a certain metallic surface is illuminated with monochromatic light of wavelength $\lambda$, the stopping potential for photoelectric effect is $3V_0$. If the same surface is illuminated with light of wavelength $2\lambda$, the stopping potential is found as $V_0$. The threshold wavelength for this surface is

Figure shows triangular lamina which can rotate about different axis of rotation. Moment of inertia is maximum about the axis

A light of wavelength $\lambda$ and intensity $I$ falls on photosensitive material. If $N$ photoelectrons are emitted, each with kinetic energy $E$, then

A mass $M$ moving with velocity $v$ along $x$-axis collides and sticks to another mass $2M$ which is moving along $y$-axis with velocity $3v$. After collision, the velocity of the combination is

When a light ray is incident on a prism at an angle of $45^\circ$, the minimum deviation is obtained. If refractive index of material of prism is $\sqrt{2$, the angle of prism will be

The moduli of elasticity for a substance are Young’s modulus, Bulk modulus and Modulus of rigidity. All the three moduli of elasticity are possessed by

The magnetic field developed due to current carrying coil at its centre is $B$. If the new coil of two turns is prepared from the above coil and same current is passed, then the magnetic field at the centre of the new coil will be

A particle is performing vertical circular motion. The difference in tension at lowest and highest point is

A spring produces extension $x$ by applying a force $F$. A body of mass $m$ suspended from the spring oscillates vertically with a period $T$. The mass of the suspended body is (neglect mass of spring)

Imagine two bar magnets having same magnetic dipole moment $M$, are inclined with each other as shown in figure. Their resultant magnetic moment will be

The relative magnetic permeability $(\mu_r)$ of a substance is related to its susceptibility $(\chi)$ as

Logic circuit shows the inputs $A$, $B$ and $C$. The output $Y$ is ‘0’ (zero) when

A metal surface is irradiated by radiations whose wavelength is $\lambda$. If the work function of the metal surface is negligibly small, then the de-Broglie wavelength of emitted electrons will be

In a transistor, doping level in base is increased slightly, the collector current and base current respectively

In an LCR circuit, inductive reactance is $30\ \Omega$ and capacitive reactance is $30\ \Omega$. The resistance is found to be $40\ \Omega$. The probable impedance of the combination is

Rate of radiation by a black body is $R$ at temperature $T$. Another body has the same area but emissivity is $0.2$ and temperature is $3T$. Its rate of radiation is

Two springs of equal length and equal area of cross-section are suspended from a rigid support and loaded with same mass. Young’s modulus of two springs is in the ratio $4:3$. When the springs are stretched through some distance and released, they will oscillate with periods $T_1$ and $T_2$. The ratio $T_1 : T_2$ is

In phase modulation, according to the information signal, a parameter of the carrier wave which is varied, is

A particle starting from mean position performs linear S.H.M. Its amplitude is \( A \) and total energy is \( E \). At what displacement its kinetic energy is \( \frac{3E}{4} \)?