Related Questions

What is the change in the angular momentum of a system as per the Law of Conservation of Angular momentum, if the total external torque acting is zero?
A Remains constant
B Becomes zero
C Increases exponentially
D None of the above
A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is
A n rpm
B $$\frac{{\text{n}}}{2}$$ rpm
C $$\frac{{\text{n}}}{4}$$ rpm
D 2n rpm
কোণিক ভরবেগ (angular momentum ) - এর ক্ষেত্রে কোনটি সঠিক?
A     →L=→r×→p   
B    →L=→p .→r
C       →L=→p ×→r     
D     →r  . →p 
বোরের স্বীকার্য অনুসারে হাইড্রোজেন পরমাণুর প্রথম কক্ষপথে ইলেকট্রনের কৌণিক ভরবেগ (According to Bohr's hypothesis, the angular momentum of electron in the 1st orbit of hydrogen atom is)
A h/2
B h/π
C h/2π
D h/4π
নিচের কোনটি কৌণিক ভরবেগের সংরক্ষণ সূত্র? (Which of the following represents the law of conservation of angular momentum?)
A L = 0
B P = 0
C t=0
D কোনটিই নয় (None)
A disc is a spinning with an angular velocity $$\omega $$ rad/s about the axis of spin. The couple applied to the disc causing precession will be (where $$I$$ = Mass moment of inertia of the disc and $$\omega {\text{P}}$$  = Angular velocity of precession of the axis of spin)
A $$\frac{1}{2}I{\omega ^2}$$
B $$I{\omega ^2}$$
C $$\frac{1}{2}I\omega \omega {\text{P}}$$
D $$I\omega \omega {\text{P}}$$
Rate of change of momentum is
A Area
B Pressure
C Force
D Velocity
The rate of change of moment of momentum represents the __________ by the fluid.
A Torque applied
B Force exerted
C Work done
D Power developed
The ratio of rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called
A proportionality
B flexibility
C setting
D sensitivity
The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as
A Efficiency
B Sensitivity
C Flexibility
D Modular limit

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