# An object of height 5cm is on the axis of a convex mirror with a…

An object of height 5cm is on the axis of a convex mirror with a curvature machine of 40 cm. the object distance is 20 cm

a) what is the image distance?
b) what is the focal length of the convex mirror?
c) what is the linear magnification?
d) calculate the height of the image?
e) draw a ray diagram showing the position and the nature of the image formed.?

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## The magnification of the image of an object placed in front of a convex mirror…

The magnification of the image of an object placed in front of a convex mirror is 1/3. If the radius of curvature of the mirror is 24cm, what is the distance between the object and its image?

## A 350g block of lead at 65°c is immersed in 125g of water at an…

A 350g block of lead at 65°c is immersed in 125g of water at an unknown temperature if the equilibrium temperature of the mixture of hot lead and water is 27.15°c. Find the temperature of water assuming the system is isolated.?

## two body of masses 8kg and 4kg moving with velocities 2m/s and 4m/s and moving…

two body of masses 8kg and 4kg moving with velocities 2m/s and 4m/s and moving in the same direction collide and start moving with common velocity V.
1. Find the common velocity
2. The total kinetic energy before and after collision
3. Loss of kinetic energy?

Find d²y/dx²
Y = sinx/x²?

## convex mirror form an image of height 2.4cm, if the radius of covature of the…

convex mirror form an image of height 2.4cm, if the radius of covature of the mirror is 40cm.find the height,distance of the object from the front of the mirror?