Practice Set 1
As shown in the figure, a bob of mass m is tied by a massless string whose other end portion is wound on a flywheel (disc) of radius r and mass m. When released from rest the bob starts falling vertically. When it has covered a distance of h, the angular speed of the wheel will be :
19
Sep
As shown in the figure, a bob of mass m is tied by a massless string whose other end portion is wound on a flywheel (disc) of radius r and mass m. When released from rest the bob starts falling vertically. When it has covered a distance of h, the angular speed of the wheel [...]
A LCR circuit behaves like a damped harmonic oscillator. Comparing it with a physical spring-mass damped oscillator having damping constant ‘b’, the correct equivalence would be:
19
Sep
A LCR circuit behaves like a damped harmonic oscillator. Comparing it with a physical spring-mass damped oscillator having damping constant ‘b’, the correct equivalence would be: A LCR circuit behaves like a damped harmonic oscillator. Comparing it with a physical spring-mass damped oscillator having damping constant 'b' the correct equivalence would be: September 19, 2021 [...]
Visible light of wavelength 6000 × 10^– 8 cm falls normally on a single slit and produces a diffraction pattern. It is found that the second diffraction minimum is at 60° from the central maximum. If the first minimum is produced at θ1, then θ1 is close to
19
Sep
Visible light of wavelength 6000 × 10^– 8 cm falls normally on a single slit and produces a diffraction pattern. It is found that the second diffraction minimum is at 60° from the central maximum. If the first minimum is produced at θ1, then θ1 is close to The correct match between the entries in [...]
If the magnetic field in a plane electromagnetic wave is given by vector B = 3 x 10^-8 sin(1.6 x 10^3 x + 48 x 10^10 t)j vector T, then what will be expression for electric field?
19
Sep
If the magnetic field in a plane electromagnetic wave is given by vector B = 3 x 10^-8 sin(1.6 x 10^3 x + 48 x 10^10 t)j vector T, then what will be expression for electric field? If the magnetic field in a plane electromagnetic wave is given by vector B = 3 x 10^-8 [...]
Consider a circular coil of wire carrying constant current I, forming a magnetic dipole. The magnetic flux through an infinite plane that contains the circular coil and excluding the circular coil area is given by ϕi. The magnetic flux through the area of the circular coil area is given by ϕ0. Which of the following option is correct ?
19
Sep
Consider a circular coil of wire carrying constant current I, forming a magnetic dipole. The magnetic flux through an infinite plane that contains the circular coil and excluding the circular coil area is given by ϕi. The magnetic flux through the area of the circular coil area is given by ϕ0. Which of the following [...]
In a series LR circuit, power of 400 W is dissipated from a source of 250 V, 50 Hz. The power factor of the circuit is 0.8. In order to bring the power factor to unity, a capacitor of value C is added in series to the L and R. Taking the value of C as (n/3π) μF, Then value of n is _____.
19
Sep
In a series LR circuit, power of 400 W is dissipated from a source of 250 V, 50 Hz. The power factor of the circuit is 0.8. In order to bring the power factor to unity, a capacitor of value C is added in series to the L and R. Taking the value of C [...]
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50 Hz. The power factor of the circuit is 0.8. In order to bring the power factor to unity ,
a capacitor of value C is added in series to the L and R. Taking the value of C as (n/3π) μF ,
In a series LR circuit ,
power of 400 W is dissipated from a source of 250 V ,
Then value of n is _____. ,
A Young’s double-slit experiment is performed using monochromatic light of wavelength λ. The intensity of light at a point on the screen, where the path difference is λ, is K units. The intensity of light at a point where the path difference is λ/6 is given by nk/12, Where n is an integer. The value of n is _________.
19
Sep
A Young’s double-slit experiment is performed using monochromatic light of wavelength λ. The intensity of light at a point on the screen, where the path difference is λ, is K units. The intensity of light at a point where the path difference is λ/6 is given by nk/12, Where n is an integer. The value [...]
Tags:
A Young’s double-slit experiment is performed using monochromatic light of wavelength λ. The intensity of light at a point on the screen ,
is K units. The intensity of light at a point where the path difference is λ/6 is given by nk/12 ,
Where n is an integer. The value of n is _________. ,
where the path difference is λ ,
An engine operates by taking a monatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to ________.
19
Sep
An engine operates by taking a monatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to ________. An engine operates by taking a monatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to ________. September 19, 2021 [...]
The centre of mass of a solid hemisphere of radius 8 cm is x cm from the centre of the flat surface. Then value of x is _________.
19
Sep
The centre of mass of a solid hemisphere of radius 8 cm is x cm from the centre of the flat surface. Then value of x is _________. The centre of mass of a solid hemisphere of radius 8 cm is x cm from the centre of the flat surface. Then value of x is [...]
The output characteristics of a transistor is shown in the figure. When VCE is 10 V and IC = 4.0 mA, then value of βac is _______.
19
Sep
The output characteristics of a transistor is shown in the figure. When VCE is 10 V and IC = 4.0 mA, then value of βac is _______. The output characteristics of a transistor is shown in the figure. When VCE is 10 V and IC = 4.0 mA then value of βac is _______. September [...]