Practice Set 1
An electron with kinetic energy K1 enters between parallel plates of a capacitor at an angle ‘a’ with the plates. It leaves the plates at angle ‘b’ with kinetic energy K2. Then the ratio of kinetic energies K1 : K2 will be :
26
Sep
An electron with kinetic energy K1 enters between parallel plates of a capacitor at an angle ‘a’ with the plates. It leaves the plates at angle ‘b’ with kinetic energy K2. Then the ratio of kinetic energies K1 : K2 will be : The logic circuit shown above is equivalent to : September 26, 2021 [...]
The truth table for the following logic circuit is :
26
Sep
The truth table for the following logic circuit is : The truth table for the following logic circuit is : September 26, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
If e is the electronic charge, c is the speed of light in free space and h is Planck’s constant, the quantity 1/4πε0 |e|^2/hc has dimensions of
26
Sep
If e is the electronic charge, c is the speed of light in free space and h is Planck’s constant, the quantity 1/4πε0 |e|^2/hc has dimensions of c is the speed of light in free space and h is Planck's constant If e is the electronic charge the quantity 1/4πε0 |e|^2/hc has dimensions of September [...]
An electron of mass me and a proton of mass mp = 1836 me are moving with the same speed. The ratio of their de Broglie wavelength λelectron /λproton will be:
26
Sep
An electron of mass me and a proton of mass mp = 1836 me are moving with the same speed. The ratio of their de Broglie wavelength λelectron /λproton will be: An electron of mass me and a proton of mass mp = 1836 me are moving with the same speed. The ratio of their [...]
An LCR circuit contains resistance of 110 Ω and a supply of 220 V at 300 rad/s angular frequency. If only capacitance is removed from the circuit, current lags behind the voltage by 45°. If on the other hand, only inductor is removed the current leads by 45° with the applied voltage. The rms current flowing in the circuit will be
26
Sep
An LCR circuit contains resistance of 110 Ω and a supply of 220 V at 300 rad/s angular frequency. If only capacitance is removed from the circuit, current lags behind the voltage by 45°. If on the other hand, only inductor is removed the current leads by 45° with the applied voltage. The rms current [...]
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An LCR circuit contains resistance of 110 Ω and a supply of 220 V at 300 rad/s angular frequency. If only capacitance is removed from the circuit ,
current lags behind the voltage by 45°. If on the other hand ,
only inductor is removed the current leads by 45° with the applied voltage. The rms current flowing in the circuit will be ,
The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is
26
Sep
The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is September 26, 2021 [...]
A charge ‘q’ is placed at one corner of a cube as shown in figure. The flux of electrostatic field E through the shaded area is :
26
Sep
A charge ‘q’ is placed at one corner of a cube as shown in figure. The flux of electrostatic field E through the shaded area is : A charge 'q' is placed at one corner of a cube as shown in figure. The flux of electrostatic field E through the shaded area is : September [...]
If a message signal of frequency ′ fm ′ is amplitude modulated with a carrier signal of frequency ′fc′ and radiated through an antenna, the wavelength of the corresponding signal in air is :
26
Sep
If a message signal of frequency ′ fm ′ is amplitude modulated with a carrier signal of frequency ′fc′ and radiated through an antenna, the wavelength of the corresponding signal in air is : If a message signal of frequency ′ fm ′ is amplitude modulated with a carrier signal of frequency ′fc′ and radiated [...]
Two identical springs of spring constant ‘2k’ are attached to a block of mass m and to fixed support (see figure).When the mass is displaced from equilibrium position on either side, it executes simple harmonic motion. The time period of oscillations of this system is :
26
Sep
Two identical springs of spring constant ‘2k’ are attached to a block of mass m and to fixed support (see figure).When the mass is displaced from equilibrium position on either side, it executes simple harmonic motion. The time period of oscillations of this system is : it executes simple harmonic motion. The time period of [...]
A stone is dropped from the top of a building. When it crosses a point 5 m below the top, another stone starts to fall from a point 25 m below the top. Both stones reach the bottom of building simultaneously. The height of the building is :
26
Sep
A stone is dropped from the top of a building. When it crosses a point 5 m below the top, another stone starts to fall from a point 25 m below the top. Both stones reach the bottom of building simultaneously. The height of the building is : A stone is dropped from the top [...]