- ✓Total Energy
- BK.E.
- CAngular Velocity
- DLinear Momentum
velocity of the planet at every point on orbit will not be same, so momentum and Kinetic energy can not be conserved. The angular velocity will also vary. But the total enengy $(K E+P E)$ will remain conserved for the system.
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Statement $I:$ If screen is moved away from the plane of slits, angular separation of the fringes remains constant.
Statement $II:$ If the monochromatic source is replaced by another monochromatic source of larger wavelength, the angular separation of fringes decreases.
In the light of the above statements, choose the correct answer from the options given below :
Assertion $A$ : A spherical body of radius $(5 \pm 0.1)$ $mm$ having a particular density is falling through a liquid of constant density. The percentage error in the calculation of its terminal velocity is $4\,\%$.
Reason $R$ : The terminal velocity of the spherical body falling through the liquid is inversely proportional to its radius.
In the light of the above statements, choose the correct answer from the options given below on :