Two sources of sound are placed along the diameter of a circle of radius `R(R gt gt 41)`. How many minima will be heard as one moves along the perimeter of circle.

Diameter of a circle whose radius is 'r' is

Find the perimeter of a quadrant of a circle of radius 'r'.

A skating champion moves along the circumference of a circle of radius 28m in 44 sec.How many seconds will it take her to move along the perimeter of a hexagon of side 48m?(a)48 (b) 68 (c) 72 (d) 84 (d) 90

The perimeter of a quadrant of a circle of radius 'r' is :

The perimeter of a quadrant of a circle of radius 'r' is :

Two point charge each +3 µC are placed along the diameter of a circle of radius 15 cm. Calculate the ectric potential at the ends of perpendicular diameter

Two identical coherent sources are placed on a diameter of a circle of radius R at separation x (lt lt R) symmetrical about the center of the circle. The sources emit identical wavelength lambda each. The number of points on the circle of maximum intensity is (x = 5 lambda)

Two identical coherent sources are placed on a diameter of a circle of radius R at separation x (lt lt R) symmetrical about the center of the circle. The sources emit identical wavelength lambda each. The number of points on the circle of maximum intensity is (x = 5 lambda)

What is the perimeter of a quadrant of a circle of radius 'r' ?