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A 3cm tall object is placed at a distance of 7.5cm from the a convex mirror of focal length 6cm.Find the location,size and nature of the image
Asked by sridhark91 | 16 Mar, 2019, 19:09: PM
Expert Answer
given :
ho= 3cm
u= - 7.5cm
f= 6cm
v=?
1/f= 1/v+1/u
1/v= 1/f- 1/u
= 1/ 6 +1/7.5
=3/10
v= 10/3 =3.3 cm
m= - v/ u
= - 3.3 / -7.5 = 33/75 = 0.44
m= hi/ho
hi = m x ho
= 0.44 x 3
= 44x3/10
=1.32 cm
ho= 3cm
u= - 7.5cm
f= 6cm
v=?
1/f= 1/v+1/u
1/v= 1/f- 1/u
= 1/ 6 +1/7.5
=3/10
v= 10/3 =3.3 cm
m= - v/ u
= - 3.3 / -7.5 = 33/75 = 0.44
m= hi/ho
hi = m x ho
= 0.44 x 3
= 44x3/10
=1.32 cm
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