Laser beams are used to measure long distance because
Laser beams are used to measure long distance because Options (a) they are monochromatic (b) they are highly polarised (c)…
7 years ago
DCE2001
Energy bands in solids are a consequence of
Energy bands in solids are a consequence of Options (a) Ohm's law (b) Pauli's exclusion principle (c) Bohr's theory (d)…
7 years ago
If an electron and a positron annihilate, the energy released is
If an electron and a positron annihilate, the energy released is Options (a) 3.2x10⁻¹³ J (b) 1.6x10⁻¹³ J (c) 4.8x10⁻¹³…
7 years ago
An α-particle and a proton travel with the same velocity in a magnetic field
An α-particle and a proton travel with the same velocity in a magnetic field perpendicular to the direction of their…
7 years ago
The momentum is most closely related to
The momentum is most closely related to Options (a) Force (b) Impulse (c) Power (d) Kinetic energy Correct Answer: Force…
7 years ago
Dimensions of Torque are
Dimensions of Torque are Options (a) ML²T⁻² (b) MLT (c) M⁰L⁰T² (d) M²L⁻²T² Correct Answer: ML²T⁻²Explanation:No explanation available. Be the…
7 years ago
Which is incorrect about thermal process
Which is incorrect about thermal process Options (a) In an isobaric process ΔP=0 (b) In an isochoric process ΔW=0 (c)…
7 years ago
If a magnetic substance is kept in a magnetic field, then which of the following
If a magnetic substance is kept in a magnetic field, then which of the following is thrown out Options (a)…
7 years ago
If the red light is replaced by blue light illuminating the object in a microscope
If the red light is replaced by blue light illuminating the object in a microscope, the resolving power of the…
7 years ago