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MCQs

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One radian is:
NETNUST Entry TestPhysicsCircular Motion
Centripetal acceleration is also called _________ acceleration
NETNUST Entry TestPhysicsCircular Motion
1 rev/min is equal to:
NETNUST Entry TestPhysicsCircular Motion
Direction of motion ________ in circular motion
NETNUST Entry TestPhysicsCircular Motion
An axis of rotation:
NETNUST Entry TestPhysicsCircular Motion
The relation between revolution and radian is given by:
NETNUST Entry TestPhysicsCircular Motion
Conventionally the angular velocity is directed at an angle of:
NETNUST Entry TestPhysicsCircular Motion
A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is:
NETNUST Entry TestPhysicsCircular Motion
Angular displacement $\triangle \theta$ is assigned a ________ sign when the sense of rotation of the body is counter clockwise:
NETNUST Entry TestPhysicsCircular Motion
$\pi$ radians is equal to:
NETNUST Entry TestPhysicsCircular Motion
Angular displacement is a vector quantity for:
NETNUST Entry TestPhysicsCircular Motion
Radiations emitted by human body lie in which of the following series?
NETNUST Entry TestPhysicsAtomic Spectra
In hydrogen spectrum, Lyman and Balmer series belong to which region?
NETNUST Entry TestPhysicsAtomic Spectra
Total energy of an electron in hydrogen atom when it jumps to higher orbit from lower orbit is
NETNUST Entry TestPhysicsAtomic Spectra
Which series is emitted when electron jumps from a higher orbit to fifth orbit?
NETNUST Entry TestPhysicsAtomic Spectra
Laser light is
NETNUST Entry TestPhysicsAtomic Spectra
If an electron undergoes transition from 4th to 2nd orbit, then the color of radiations produced will be
NETNUST Entry TestPhysicsAtomic Spectra
The wavelength of X-rays is
NETNUST Entry TestPhysicsAtomic Spectra
In case of braking radiations, when the rate of deceleration is very large, the emitted radiation corresponds to:
NETNUST Entry TestPhysicsAtomic Spectra
Electromagnetic radiations are emitted by the charge:
NETNUST Entry TestPhysicsAtomic Spectra
Braking radiation causes:
NETNUST Entry TestPhysicsAtomic Spectra
The characteristic X-rays appear as:
NETNUST Entry TestPhysicsAtomic Spectra
The holes created in the L and M shells are occupied by transitions of:
NETNUST Entry TestPhysicsAtomic Spectra
Characteristic X-rays are so called because:
NETNUST Entry TestPhysicsAtomic Spectra
$K_{\beta}$ X-ray photon is emitted when the hole in the K shell is occupied by the electron of:
NETNUST Entry TestPhysicsAtomic Spectra
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