List of top Physics Questions on Nuclear physics asked in LPUNEST

For an object at infinity, a concave mirror produces an image at its focus which is:
According to the laws of reflection:
A radioactive isotope is being produced at a constant rate \(X\). Half-life of the radioactive substance is \(Y\). After some time the number of radioactive nuclei becomes constant. The value of this constant is:
Two identical particles move at right angles to each other, possessing de-Broglie wavelengths \( \lambda_1 \) and \( \lambda_2 \). The de-Broglie wavelength of each of the particles in their centre of mass frame will be
For the following question, enter the correct numerical value upto TWO decimal places. If the numerical value has more than two decimal places, round-off the value to TWO decimal places. (For example: Numeric value 5 will be written as 5.00 and 2.346 will be written as 2.35) A 1 kW carrier is modulated to a depth of 80%. The total power in the modulated wave is ____ kW.
For the following question, enter the correct numerical value upto TWO decimal places. If the numerical value has more than two decimal places, round-off the value to TWO decimal places. (For example: Numeric value 5 will be written as 5.00 and 2.346 will be written as 2.35) A mass of 10 kg is suspended vertically by a rope from the roof. When a horizontal force is applied on the rope at some point, the rope deviates at an angle of \(45^\circ\) at that point. If the suspended mass is at equilibrium, the magnitude of the force applied is ____ N. (\(g = 10 \, \text{m s}^{-2}\))