0.20m
0.25m
0.40m
0.50m
Correct answer is A
P = \(\frac{M}{AL}\)
L = \(\frac{M}{CA}\)
= \(\frac{1.76}{7000 \times 0.001257}\)
= 0.2m
The density P of a spherical ball of diameter d and mass m is given by
P = \(\frac{3m}{4 \pi d^3}\)
p = 4\(\pi md^3\)
p = \(\frac{6m}{\pi d^3}\)
p = \(\frac{3m}{2 \pi d^3}\)
Correct answer is C
p = \(\frac{M}{V} = \frac{M}{\frac{4}{3} \pi (\frac{d}{\pi})^3}\)
= \(\frac{6m}{\pi d^3}\)
Neutrons are used to induce artificial radioactivity because they
are energetic
have no charge
have no mass
are ionizing
Correct answer is B
No explanation has been provided for this answer.
A nuclide represented as \(^{70}_{32}X\) has a neutron-proton ratio of
0.5
0.8
1.2
1.5
Correct answer is C
\(\frac{38}{32} = 1.2\)
In a cathode ray tube, the function of the x-plates is to
deflect the electron beam horizontally
deflect the electron beam vertically
reflect the electron beam
generate sinusoid waves
Correct answer is A
No explanation has been provided for this answer.