(a) at infinity
(b) at finite distance from the mirror
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Draw ray diagrams showing the image formation by a concave mirror when an object is placed
Hint— Draw ray diagrams separately indicating the direction of incident and reflected rays.
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Draw ray diagrams showing the image formation by a convex lens when an object is placed
Hint— Draw ray diagrams separately indicating the direction of incident.
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Draw ray diagrams showing the image formation by a concave lens when an object is placed
Hint—Draw ray diagrams separately indicating the direction of incident and refracted rays.
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A concave mirror produces three times (enlarged) magnified real image of an object placed at 10 cm in front of it. Where is the image located?
Here, in case of concave mirror u=10 cm [u, is always negative] v =?;m = - 3 [real image] Now the magnification formula is m= -v/u or -3= -(v/-10) or , v = -30 cm. Image will...
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An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image,
Given, u=-10 cm, f=+15 cm,v=? From mirror formula, 1/f=1/v+1/u or 1/v=1/f=1/u =1/v=1/15=1/(-10)=1/15+1/10=(2+3)/30 or v=30/5=+6 cm That is image is formed at a distance of 6 cm from the mirror behind it. The image is erect...
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An object 5 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position of the image,
Radius of curvature of convex mirror, R = 30 cm. Focal length of convex mirror, f=R/2=30cm/2=15cm Now h=5cm,u=-20cm,v=?,h'=? Using the mirror formula 1/f=1/u+1/v, we have 1/v=1/f=1/u=1/15=1/-20=1/15+1/20=(4+3)/60 v=60/7=8.6cm. Thus, image is formed at a distance of 8.6cm...
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You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from
(c) both concave mirror and convex lens.
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State the laws that are followed when light is reflected by spherical mirrors. Draw a ray diagram to show the formation of image of an object
(i) The incident ray, the normal to the mirror at the point of incidence and the reflected ray, all lie in the same plane, and (ii) The angle of incidence is...
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A point object is placed at a distance of 30 cm from a convex mirror of focal length 30 cm. The image will form at
(d) 15 cm behind the mirror. EXPLANATION: The option can be selected by suitable reasoning. In a convex mirror, the object at infinity has its image at the focus behind the mirror....
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A virtual image larger than the object can be obtained by (a) concave mirror (b) convex mirror
(a) Virtual image formed is larger in size in case of concave mirror.
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