1. N molecules each of mass m and v velocity collides with a wall of a container and then absorbe... more 1. N molecules each of mass m and v velocity collides with a wall of a container and then absorbed, the pressure applied on the wall is : (1) mNV 2 (2) mNV 2 (3) 2 mNV 2 (4) mNV 2 3 2 2. The law of far a day is obtained by conservation of : (1) Charge (2) Energy (3) Energy and magnetic field (4) Magnetic field 3. There is a q charge placed in the centre of a cube, then the emergent flux is : (1) q (2) q (3) q (4) q_ 6∈ 0 8 ∈ 0 2 ∈ 0 ∈ 0 4. Two thin lenses are put close to each other, focal length of the combination is : (1) less than the small focal length (2) more than the bigger focal length (3) equal to the arithmetical average of the focal length (4) equal to the geometrical average of the focal length 5. A car is moving on a horizontal circular path with 10 m/s constant speed. A rigid body is suspended from ceiling of car with a 1 m. long light rod, the angle between rod and path is : (1) 60 0 (2) 45 0 (3) 30 0 (4) zero 6. Two sources of E 1 and E 2 emf r 1 and r 2 internal, resistances, are connected in the parallel combination, the emf of the combination is : (1) E 1 E 2 (2) E 2 r 1 + E 1 r 2 (3) E 1 r 1 + E 2 r 2 (4) E 1 + E 2 E 1 +E 2 r 1 + r 2 r 1 + r 2 2 7. In a AC circuit R = 0 Ω ΩΩ Ω, X L = 8Ω ΩΩ Ω and X C = 6Ω ΩΩ Ω phase difference between voltage and current is : (1) 11 0 (2) 45 0 (3) 37 0 (4) 12 0 8. Relative permeability of a medium is µ µµ µ r and relative permittivity is ∈ ∈∈ ∈ r then the velocity of an electro magnetic wave is : (1) c (2) √∈ r µ r (3) √µ 0 t 0 (4) 1 ∈ 0 µ 0 µ r ∈ r µ r ∈ r
1. N molecules each of mass m and v velocity collides with a wall of a container and then absorbe... more 1. N molecules each of mass m and v velocity collides with a wall of a container and then absorbed, the pressure applied on the wall is : (1) mNV 2 (2) mNV 2 (3) 2 mNV 2 (4) mNV 2 3 2 2. The law of far a day is obtained by conservation of : (1) Charge (2) Energy (3) Energy and magnetic field (4) Magnetic field 3. There is a q charge placed in the centre of a cube, then the emergent flux is : (1) q (2) q (3) q (4) q_ 6∈ 0 8 ∈ 0 2 ∈ 0 ∈ 0 4. Two thin lenses are put close to each other, focal length of the combination is : (1) less than the small focal length (2) more than the bigger focal length (3) equal to the arithmetical average of the focal length (4) equal to the geometrical average of the focal length 5. A car is moving on a horizontal circular path with 10 m/s constant speed. A rigid body is suspended from ceiling of car with a 1 m. long light rod, the angle between rod and path is : (1) 60 0 (2) 45 0 (3) 30 0 (4) zero 6. Two sources of E 1 and E 2 emf r 1 and r 2 internal, resistances, are connected in the parallel combination, the emf of the combination is : (1) E 1 E 2 (2) E 2 r 1 + E 1 r 2 (3) E 1 r 1 + E 2 r 2 (4) E 1 + E 2 E 1 +E 2 r 1 + r 2 r 1 + r 2 2 7. In a AC circuit R = 0 Ω ΩΩ Ω, X L = 8Ω ΩΩ Ω and X C = 6Ω ΩΩ Ω phase difference between voltage and current is : (1) 11 0 (2) 45 0 (3) 37 0 (4) 12 0 8. Relative permeability of a medium is µ µµ µ r and relative permittivity is ∈ ∈∈ ∈ r then the velocity of an electro magnetic wave is : (1) c (2) √∈ r µ r (3) √µ 0 t 0 (4) 1 ∈ 0 µ 0 µ r ∈ r µ r ∈ r
Uploads
Papers by hemant jangir