List of top Physics Questions asked in MHT CET

The coefficient of performance of a refrigerator is 5. If the temperature inside the freezer is \( -20^\circ \mathrm{C} \), what is the temperature of the surroundings to which it rejects heat?
A metallic sphere of radius \( R \) is charged to a potential \( V \). The magnitude of the electric field at a distance \( r \, (r > R) \) from the center of the sphere is:
Find the ratio of K.E. and P.E. when a particle performs SHM and is at \( \frac{1}{n} \) times its amplitude from the mean position.
A pendulum having a negatively charged metal knob is oscillating on a positively charged surface. The time of the pendulum will be:
If a copper rod carries a direct current, the magnetic field associated with the current will be?
Rate of cooling of a body is \(0.2^\circ \text{C/min}\) when excess temperature is \(20^\circ \text{C}\). The proportionality constant \( k \) is:
What is the angular frequency \( \omega \) of a simple harmonic oscillator with mass \( m \) and spring constant \( k \)?
What is the fundamental frequency of an open organ pipe with length \( L \) and speed of sound \( v \)?
Which of the following is NOT a layer of the urinary bladder?
In a series LCR circuit connected to an AC source, at resonance, the current is maximum because:
In Young's double slit experiment, if the distance between the slits is doubled while keeping the wavelength and the distance to the screen constant, the fringe spacing will:
What is the equivalent logic gate when the output of an AND gate is passed through a NOT gate?
Convert 72 degrees Celsius to Fahrenheit.
What is the oxidation state of Fe in \( \mathrm{Fe_3O_4} \)?
Find the solubility product of \( \mathrm{Ba(OH)_2} \)?
Where \( S = 1.73 \times 10^{-14} \).
The first member of the Paschen series in the hydrogen spectrum is of wavelength \( 18800 \, \text{Å} \). What is the short wavelength limit of the Paschen series?
A coil has a resistance of \( 30 \, \Omega \) and an inductive reactance of \( 20 \, \Omega \) at 50 Hz frequency. If an AC source of 200 V and 100 Hz is connected across the coil, then how much current will flow through the coil?
Which of the following is a logic gate that gives an output of 1 when the inputs are different?
What is the overtone of a vibrating string?
How do you find the amplitude of a simple harmonic oscillator?
What is the ratio \( \frac{C_p}{C_v} \) for a monatomic and diatomic gas?
The ideal gas equation is given by \( PV = nRT \). Which of the following statements is correct for an ideal gas?
The root mean square velocity (\(v_{\text{rms}}\)) of a gas is given by:
Two monkeys off mass 10 kg and 8 kg are moving along a vertical light rope the former climbing up with an acceleration of 2 m/second square while the latter coming down with a uniform velocity of 2 m/sec square find the tension in the rope at the fixed support
Two bodies, R1 and R2, radiate power at temperatures \( T_1 \) and \( T_2 \) respectively. What is the ratio \( R_1 : R_2 \) of their radiated powers?