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Consider interference between two sources of intensity I and 4I. Find out resultant intensity where phase difference is (i). pi//4 (ii). pi (iii). 4pi

A body travel a distance of 3 km towards East, then 4 km towards North and finally 9 km towards East. (i) What is the total distance travelled ? (ii) What is the resultant displacement ?

When 30mu C charge is given to an isolated conductor of capacitance 5mu F . Find out the following (i) Potential of the conductor (ii) Energy stored in the electric field of conductor (iii) If this conductor is now connected to another isolated conductor by a conducting wire (at very large distance ) of total charge 50mu C and capacity 10mu F then (a) find out the common potential of both the conductors. (b) Find out the heat dissipated during the process of charge distribution. (c) Find out the ratio of final charges on conductors. d) Find out the final charges on each conductor.

Two waves having intensity I and 9I produce interference . If the resultant intensity at a point is 7 I , what is the phase difference between the two waves ?

The three initial and final positions of a man on the x-axis are given as (i) (-3 m, 7 m) (ii) (7 m, -3 m) (iii) (-7 m, 3 m)

The three initial and final position of a man on the X-axis are given as (i) (-8m, 7m) (ii) (7m, -3m) (iii) (-7m, 3m) Which pair gives the negative displacement ?