Draw the front view, side view and to view of the given objects.
A dice

Draw the front view, side view and top view of the given objects. A nut

Draw the front view, side view and to view of the given objects. A solid

Draw the front view, side view and top view of the given objects A table

Draw the front view, side view and top view of the given objects. A hexagonal block

Draw the front view, side view and top view of the given objects A military tent

An object of height 5 cm is placed at a distance of 30 cm from a positive lens whose focal length is 12 cm. Find the position, nature and the size of the image formed. Also, draw a ray diagram.

A student measures the thickness of a human hair by looking at it through a microscope of magnification 100. He makes 20 observations and finds that the average width of the hair in the field of view of the microscope is 3.5 mm. What is the estimate on the thickness of hair?

The far point of a myopic person is 120 cm in front of the eye. Find the focal length and the power of the lens required to enable to see distant objects clearly.

Construct an equilateral triangle with sides 4 cm and then construct a similar triangle of the given triangle whose sides are 3/4 times of the given triangle.

A convex lens forms a real and inverted image of a needle at a distance of 50 cm. from it . Where is the niddle placed in front of convex lens if the image is equal to the size of the object? Also , find the power of the lens.