In torches, search lights and headlights of vehicles the bulb is placed:
very near to the focus of the reflector
between the pole and the focus of the reflector
between the focus and centre of curvature of the reflector
at the centre of curvature of the reflector
A
between the pole and the focus of the reflector
B
at the centre of curvature of the reflector
C
very near to the focus of the reflector
D
between the focus and centre of curvature of the reflector
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Solution
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In torches, search lights and headlights of vehicles the bulb is placed very near to the focus of the reflector to get a parallel beam of light through which we can see to a longer distance.
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Similar Questions
Q1
Question 12 In torches, search lights and headlights of vehicles the bulb is placed
(a) between the pole and the focus of the reflector (b) very near to the focus of the reflector (c) between the focus and centre of curvature of the reflector (d) at the centre of curvature of the reflector
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Q2
In the concave reflector of a torch, the bulb is placed:
(a) between the pole and focus of reflector
(b) at the focus of reflector
(c) between focus and centre of curvature of reflector
(d) at the centre of curvature of reflector
View Solution
Q3
A concave mirror produces magnification of +4. The object is placed:
(a) at the focus
(b) between focus and centre of curvature
(c) between focus and pole
(d) beyond the centre of curvature
View Solution
Q4
In order to obtain a magnification of, −0.6 (minus 0.6) with a concave mirror, the object must be placed:
(a) at the focus
(b) between pole and focus
(c) between focus and centre of curvature
(d) beyond the centre of curvature
View Solution
Q5
In torches, search lights and headlights of vehicles the bulb is placed: