+91-87964 74404
FlagBACK
Question icon
General Physics

an image of a statue appears to be 11.5 cm behind the convex mirror with focal length 13.5cm ...find the dstance from statue to the mirror

Profile image of fatima
12 Years agoGrade
Answers icon

3 Answers

Profile image of suhel
12 Years ago

image distance behind the convex mirror s'' =-11.5cm

focal lenght f = 13.5cm

we know that , 1/s+1/s'' = 1/f

                         1/s-1/11.5 = 1/13.5

                          1/s = 1/13.5+1/11.5

                           1/s = 0.1610

                            s = 6.21cm

Profile image of suhel
12 Years ago

ans : -6.21cmCool

Profile image of rafay
10 Years ago
this is wrong.. the mirror used is cocave mirror whose image distance is considered +ive.. so by using mirror formula.. 1/f=1/p+1/q, where f=focal length=13.5cm,p=object distance=11.5cm,q=image distance=?. By modifying we get.. 1/q=1/f-1/p..by putting values, we get.. 1/q=1/13.5-1/11.5..
now dividing .. we get
1/d=0.070-0.0869  => 1/d= -0.0129.
now. replacing d with -0.0129 and dividing it by 1, we get  q= -77.52cm

Other Related Questions on general physics

question mark

 In viewing through a magnifying glass, one usually positions one's eyes very close to the lens. Does angular magnification change if the eye is moved back?

general physics
1 Answer Available

Last Activity: 9 Months ago

question mark
moment of inertia of a equilateral triangle about an axis passing through centre and perppendicular to the plane
general physics
1 Answer Available

Last Activity: 3 Years ago

question mark
. Because of the rotation of the earth, a plumb bob may not hang exactly along the direction of
the earth’s gravitational pull (its weight) but deviates slightly from this direction. Calculate the
deviation (a) at 40 latitude, (b) at the poles, and (c) at the equator
general physics
1 Answer Available

Last Activity: 3 Years ago

question mark
The length of a massless rod is measured using vernier callipers having 10 vernier scale divisions and least count of 0.1 mm. Two masses 1.00 ± 0.01 kg and 4.00 ± 0.02 kg are attached to its ends. If reading of vernier scale is 5 divisions coinciding with 1.3 cm, what is the % error in locating centre of mass from lighter mass
general physics
2 Answers Available

Last Activity: 3 Years ago

question mark
A block is kept on x-y plane at a point (2m,3m). It is pushed with a force of magnitude 10 Ntowards point (5m,7m). The force can be represented as?
general physics
1 Answer Available

Last Activity: 3 Years ago