A circle with radius 16 cm is cut into four equal parts and rearranged to form another shape as shown in Fig. 9.52:

Does the perimeter change? If it does change, by how much does it increase or decrease?

How does the energy of photon change of the corresponding wavelength increases?

Rectangle ABCD is formed in a circle as shown in Fig. 9.12. If AE = 8 cm and AD = 5 cm, find the perimeter of the rectangle.

If the radius of a cylinder is doubled and the beight is reduced by 50% , then by how much percent does the volume increase/decrease?

A large square is made by arranging a small square surrounded by four congruent rectangles as shown in Fig. 9.53. If the perimeter of each of the rectangle is 16 cm, find the area of the large square.

If x=(2)/(5)y+3, how does y change when x increases from 1 to 2 ?

A circular ring of radius r made of a nonconducting material is placed with its axis parallel to a uniform electric field. The ring is rotated about a diameter through 180^0 . Does the flux of electric field change? If yes, does it decrease of increase?