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A circular water fountain 6.6 m in diameter is surrounded by a path of width 1.5 m. The area of this path in square metres is-

The path differece between the two indentical waves arriving at a point is 85.5 lambda . If path difference is 42.5 mu m then wavelenght of light used is

A proton describes a circular path of radius 5 cm in a transerve magnetic field. If the speed of the proton is doubled, then the radius of the circular path will be

The solution set of |x-1|+|x+5|=6 is:

A charge of 10^(-6)C is describing a circular path of radius 1cm making 5 revolution per second. The magnetic induction field at the centre of the circle is

A person standing at the junction (crossing) of two straight paths represented by the equations 2x-3y+4=0 and 3x+4y-5=0 wants to reach the path whose equation is 6x-7y+8=0 in the least time.Find equation of the path that he should follow.

A square lawn is surrounded by a path 2.5 m wide. If the area of the path is 165 m^2 , find the area of the lawn.

A square lawn is surrounded by a path 2.5 m wide. If the area of the path is 165 m^(2) find the area of the lawn.

A particle having the same charge as of electron moves in a circular path of radius 0.5 cm under the influence of a magnetic field of 0.5 T. If an electric field of 100V/m makes it to move in a straight path, then the mass of the particle is ( Given charge of electron = 1.6 xx 10^(-19)C )