170 ms-1
340 ms-1
680 ms-1
765 ms-1
1530 ms-1
Correct answer is B
No explanation has been provided for this answer.
the final image is at the near-point
the image formed by the objective is before the focus of the eye piece
the angular magnification is the ratio of the focal length of the eye-piece lens to that of the objective
the foci dl the objective and the eye-piece coincide between the lenses
the distance between the objective lens and the eye-piece is equal to the difference between their focal lengths.
Correct answer is D
No explanation has been provided for this answer.
Two 2.0Ω resistors can be combined circuit to give an overall resistance of
0.5Ω only
1.0 Ω only
either 0,5Ω or 1.0 Ω
either 1.0Ω or 4.0 Ω
either 0.5Ω, 1.0Ω or 4.0Ω
Correct answer is D
No explanation has been provided for this answer.
Calculate the peak voltage of a mains supply of r.ms. value 220V.
121 V
156 V
225 V
240 V
311 V
Correct answer is E
No explanation has been provided for this answer.
24.0cm
27.0cm
36.0cm
45.0cm
54.0cm
Correct answer is E
No explanation has been provided for this answer.