20m
80m
160m
320m
Correct answer is B
max. height = \(\frac{U^2\sin^2\theta}{2g}\)
= \(\frac{80 \times 80 \times \sin^2(30)}{2 \times 10}\)
= 80m
1.3ms-1
10.0ms-1
50.0ms-1
70.0ms-1
Correct answer is C
No explanation has been provided for this answer.
32.5kg-1 s
31.5kg-1
30.8kg-1 s
30.0kg-1 s
Correct answer is D
Flow = rate = \(\frac{mass}{time}\)
= \(\frac{1000 \times 540}{5 \times 3600}\)
= 30.0kg-1 s
0.4eV
2.5eV
3.0eV
7.0eV
Correct answer is C
Work function = 5 - 2
= 3eV
3V
6V
24V
48V
Correct answer is A
\(\frac{V_s}{V_p}\) = \(\frac{N_s}{N_p}\) = \(\frac{I_p}{I_s}\)
\(\frac{100}{400}\) = \(\frac{V_S}{12}\)
V = 3V