Last seen: Jan 13, 2022
Correct answer: (4) ρM > ρA > ρC Explanation: ρM = 98 x 10-8 ρA = 2.65 x 10-8 ρC = 1.724 x 10-8 ρT = 5.65 x 10-8
Correct answer: (2) P : Large retentivity, large coercivity
Correct answer: (2) 29.5 ms–1 Explanation: VA = 36 km/hr = 10 m/s VB = –72 km/hr = –20 m/s Vman = – 1.8 km/hr = –0.5 m/s Vman, B = Vman, A ...
Correct answer: (2) 60 MW Explanation: P = E/t = 2/235 x 6.023 x 1026 x 200 x 1.6 x 10–19/ 30 x 24 x 60 x 60 = 60 W
Correct answer: (4) FA-1V0 Explanation: Y ∝ FaVbAc Y = (F/A) MLT-2/L2 ∝ (M1L1T-2)a(L1T-1)b(L2)c M1L-1T-2 ∝ MaLa+b+2cT-2a-b a + b + 2c = –1...
Correct answer: (3) 4 cm Explanation: Pitch = (Vcosθ)T = (Vcosθ)2πm/eB = (4 x 105 cos60°) 2π/0.3 x 10(1.67 x 10-27/1.69 x 1019) = 4 cm
Correct answer: (2) 5/2V, 8V Explanation: From Given Equation μ = 0.6 Am = μAc Amax + Amin/2 = Ac = 5 .....(1) Amax - Amin/2 = 3 .....(2...
Correct answer: (3) 1.27 μm Explanation: ΔP = dsinθ = dθ = dy/D = (10-3 x 1.270 mm)/ 1m = 1.27μm
Correct answer: (1) 15 Explanation: f1n1RT1/2 + f2n2RT2/2 = 3 x 5/2RT + 5/2 x 3RT = 15
Correct answer: (2) 3.07 cm Explanation: Zero Error = 0 + 7 × 0.1 = 0.070 Vernier reading = (3.1 + 4 × 0.01) – 0.07 = 3.07
Correct answer: (2) 67 cm
Correct answer: (3) insulators and semiconductors
Correct answer: (1) 3/2 kBT
Correct answer: (2) 0.5 mm
Correct answer: (2) 10.0 g
Correct answer: (1) 4.5 × 1013 J
Correct answer: (1) adiabatic
Correct answer: (2) four times
Correct answer: (1) 9.98 m
Correct answer: (1) 1.28 × 105N/C