Micrometer screw gauge
Vernier Caliper
Meter rule
None of the instrument
Correct answer is B
Vernier calliper is used to measure the internal and external diameter of an object
e = M.A/V.R × 100 %
M.A = E.V.R
V.R = 1 ÷ sin θ M.A
M.A = 1/E × 100%
Correct answer is A
The relationship between M.A, V.R, e and 100% can be written as
e = M.A/V.R × 100 %
i.e E/100 = M.A/V.R
= L ÷ E/x ÷ y = Ly/Ex
E/100 = Ly/Ex
James Chadwick B.
J.J Thompson
Sir Isaac Newton
Charles Newton
Correct answer is B
J.J. Thompson discovered ELECTRONS
9.4m
7.5m
5.7m
6.9m
Correct answer is A
As object and image are usually at equal distance apart from the mirror /p>
Distance between Abioye (a) and hip image (I) = AI
i.e. AI = 4.7 + 47
= 9.4m
6.67N
6.56N
7.5N
8.6N
Correct answer is A
F = (Gm1m2) ÷ r2
M1 = 1024Kg, M2 = 1027Kg , r = 102
(Note: the gravitational constant of G = \(6.67 × 10^{ 7ndash; 11}\) \( Nm^2/Kg^2 \)
F = \( (6.67 × 10^{– 11 + 24 + 27)} 10^40 = 6.67 × (10^40 ÷ 10^40)
= 6.67N
f = 6.67N