A. Taking zero correction
B. Comparing the instrument with another more accurate one
C. Taking mean of several measurements
D. All methods explained in A, B and C
Related Mcqs:
- Errors in the transmission of power through optic fiber can be minimized by using a______________?
A. Multimode index fiber
B. Graded index fiber
C. Single mode step index fiber
D. Copper wire - The velocity of light was determined accurately by_______________?
A. Newton
B. Michelson
C. Huygen
D. Young - The direction of a vector in space is specified by_______________?
A. One angle
B. Two angle
C. Three angle
D. No angle - The period of a circular motion is given by_______________?
A. T = πv
B. T = πw
C. T = 2πr
D. T = 2πr/v - The restoring force acting on the simple pendulum is given by_______________?
A. mg sin θ
B. mg sin θ
C. mg cos θ
D. mg cos θ - The relativistic energy E is equivalent to relativistic mass given by_______________?
A. Ec2
B. E/c2
C. E/c
D. c2/E - Einstein’s photoelectric equation is given by_______________?
A. 1/2 mvmax2=hf+Φ
B. 1/2 mvmax2-hf = Φ
C. 1/2 mvmax2=hf-Φ
D. All of above are correct - The equation θ = 1.22 λ/D was devised by_______________?
A. Newton
B. Einstein
C. Raleigh
D. Planks - In He-Ne laser the lasing action is produced by_______________?
A. Ne only
B. He-Ne both
C. Electrons of He
D. Electrons Ne - How many days would be in a year if the distance between the earth and the sun were reduced to half of its present value (assuming circular orbit) ?
A. 365 days
B. 730 days
C. 329 days
D. 129 days
