20,916.
A.
I only
B.
II only
C.
III only
D.
I and II only
E.
I, II and III
Correct answer is A
No explanation has been provided for this answer.
20,917.
A.
0.5 ms-1
B.
2.0ms-1
C.
8.0 ms-1
D.
32.0 ms-1
E.
128.0 ms-1
Correct answer is C
F =
m(v - u)t
; (v - u) = Ftm
= 8.0 20,918.
A.
Usinθ/2g
B.
2Usinθ/g
C.
Ucosθ/g
D.
2Ucosθ/g
E.
Usinθ/g
Correct answer is E
No explanation has been provided for this answer.
20,919.
Which of the following is a scalar quantity?
A.
Momentum
B.
Acceleration
C.
Displacement
D.
Distance
E.
Force
Correct answer is D
No explanation has been provided for this answer.
20,920.
Which of the following is not an evidence of the particle nature of matter?
A.
Diffusion
B.
Brownian motion
C.
Diffraction
D.
Crystal structure
E.
Photoelectricity
Correct answer is C
No explanation has been provided for this answer.
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