Archives

The last digit of the number 32³² is

1) 4 2) 6 3) 8 4) None of these Solution: 3232 = (2 + 3×10)32 = 232 + 10k, where k belongs to N. So last digits in 3232 =... View Article

The remainder obtained when 1! + 2! + 3! + ….. + 11! is divided by 12 is

1) 9 2) 8 3) 7 4) 6 Solution: Let S = 1! + 2! + 3! + ..... + 11! = (1! + 2! + 3!)+ 4! + 5! + ..... + 11! = 1 + 2 + 6 + 4! + 5! + ..... +... View Article

The physical quantities not having same dimensions are

1) torque and work 2) momentum and Planck's constant 3) Stress and Young's modulus 4) Speed and (μ0ε0)-1/2 Answer: 2) momentum... View Article

The physical quantity having the dimensions [M^-1L^-3T³A²] is

1) resistance 2) resistivity 3) electrical conductivity 4) electromotive force Answer: 3) electrical conductivity Resistivity, ρ =... View Article

The dimensions of Planck’s constant is same as that of

1) angular momentum 2) linear momentum 3) work 4) coefficient of viscosity Answer: 1) angular momentum Angular momentum L = nh/2π, h... View Article

The number of significant figures in the numbers 4.8000×10⁴ and 48000.50 are respectively.

1) 5 and 6 2) 5 and 7 3) 2 and 7 4) 2 and 6 Answer: 2) 5 and 7 Solution: All the non zero digits are significant. The trailing zero(s)... View Article

A physical quantity Q is found to depend on observables x,y and z obeying relation Q = x³y²/z.

A physical quantity Q is found to depend on observables x,y and z obeying relation Q = x3y2/z. The percentage error in the measurement of x,y and... View Article

The current voltage relation of diode is given by I = (e^1000V/T – 1) mA

The current-voltage relation of the diode is given by I = (e1000V/T – 1) mA, where the applied V is in volts and the temperature T is... View Article

A student measured the length of a rod and wrote it as 3.50 cm. Which instrument did he use to measure it?

1) A metre scale 2) A vernier calliper where the 10 division in vernier scale matches with 9 divisions in main scale and main scale has 10... View Article

The dimension of (1/2)ε₀E² (ε₀ is the permittivity of free space, E is the electric field)

1) MLT-1 2) ML2T-2 3) ML-1T-2 4) ML2T-1 Answer: 3) ML-1T-2 Solution: Dimension of ε0 = [M-1L-3T4A2] Dimension of electric... View Article

Which one of the following pair of quantities has same dimension?

1) force and workdone 2) momentum and impulse 3) pressure and force 4) Surface tension and stress Answer:2) momentum and impulse Solution:... View Article

R, L and C represent the physical quantities resistance, inductance and capacitance, respectively. Which one of the following combinations has the dimension of frequency?

1) 1/√RC 2) R/L 3) 1/LC 4) C/L Answer: 1,2 and 3 For RC circuits, the time constant is τ=RC, it has the unit of time, so,1/RC... View Article

M	T	W	T	F	S	S
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30	31

Archives

The last digit of the number 32³² is

The remainder obtained when 1! + 2! + 3! + ….. + 11! is divided by 12 is

The physical quantities not having same dimensions are

The physical quantity having the dimensions [M^-1L^-3T³A²] is

The dimensions of Planck’s constant is same as that of

The number of significant figures in the numbers 4.8000×10⁴ and 48000.50 are respectively.

A physical quantity Q is found to depend on observables x,y and z obeying relation Q = x³y²/z.

The current voltage relation of diode is given by I = (e^1000V/T – 1) mA

A student measured the length of a rod and wrote it as 3.50 cm. Which instrument did he use to measure it?

The dimension of (1/2)ε₀E² (ε₀ is the permittivity of free space, E is the electric field)

Which one of the following pair of quantities has same dimension?

R, L and C represent the physical quantities resistance, inductance and capacitance, respectively. Which one of the following combinations has the dimension of frequency?

Which physical quantities have same dimensions?

The dimensions of magnetic field in M, L, T and C (coulomb) is given as

Dimensional formula of Stefan’s constant is

The dimensional formula of modulus of rigidity ( η ) is

A student performs an experiment to determine Young’s modulus of a wire, exactly 2 m long, by Searle’s method.

The dimensional formula for the magnetic field is

The dimensions of resistance are same as those of …, where h is the Planck’s constant and e is the charge.

The dimensions of potential are the same as that of

FREE TEXTBOOK SOLUTIONS