NEET Physics | Daily MCQs Practice Questions | 25 July 2024 | NEET Exam

Net potential may be zero on the line AB at point / points: (except at ∞)

Two springs of constants k₁ and k₂ have equal maximum velocities, when executing simple harmonic motion. The ratio of their amplitude (masses are equal) will be :

Three wires are situated at the same distance. A current of 1A, 2A, 3A flows through these wires in the same direction. What is the ratio of F₁ /F₂ . Where F₁ is the net magnetic force on wire having current 1A and F₂ is the net magnetic force on wire having current 2A.

The capacitors are uncharged in the begining . How much heat will be produced, when switch k is closed:

A satellite revolve very near to the earth (radius R_e) then it’s time - period is :

The sinusoidal A.C. current flows through a register of resistance R. If the peak current is I_p. then power dissipated is:

An object 5 cm tall is placed 1 m from a concave spherical mirror which has a radius of curvature of 20 cm. The size of the image is :

The speed of a wave in a medium is 1500 m/s then number of waves pass through a point in 1 minute in this medium, if the wavelength of wave is 25 m:

The number of silicon atoms per m³  is 5 × 10²⁸. This is doped simultaneously with 5 × 10²² atoms per m³ of Arsenic and 5 × 10²⁰ per m³ atoms of Indium. Calculate the number of holes. Given that n_i = 1.5 × 10¹⁶ m^–3. Is the material n-type or p-type:

Two liquids are at temperature 20°C and 40°C. When same mass of both of them is mixed, the temperature of the mixture is 32°C. What is the ratio of their specific heats :

The intensity of an electric field inside a capacitor is E. The work required to make a charge q, move in a closed rectangular circuit is :

In an electromagnetic wave in free space the root mean square value of the electric field is E_rms = 6 V/m . The peak value of the magnetic field is:

An electric dipole of moment p is placed in the position of stable equilibrium in uniform electric field of intensity E. This is rotated through an angle θ from the initial position. The potential energy of the electric dipole in the final position is :

A proton carrying 1 MeV kinetic energy is moving in a circular path of radius R in uniform magnetic field. What should be the energy of an α-particle to describe a circle of same radius in the same field :

A coil of inductive reactance $1\sqrt{3}\mathrm{\Omega }$ and resistance 1Ω is connected to a 200V, 50 Hz AC supply. The time lag between maximum voltage and current is :