The average power transmitted by a progressive wave in term of standard notations is

Correct option is (B) 3072 In G.P., \(a_3=24,a_6=192\) Let first term of the G.P. is a & common ratio of the G.P. is r. \(\therefore ar^2=24\)     ____________(1)    \((\because a_3=ar^2)\) & \(ar^5=192\)   ____________(2)    \((\because a_6=ar^5)\) \(\therefore\frac{ar^5}{ar^2}=\frac{192}{24}=8\)   ...

Correct Answer - C In hydrogen atom electrostatic force of attraction `(F_e)` between the revolving electrons and the nucleus provides the requisite centripetal force `(F_c)` to keep them in their orbits....

Correct Answer - `1xx10^(-8)` henry

Power in `LCR` circuit /`AC` circuit: the voltage `V=V_(m) sin omegat` is applied to a series `RLC` circuit.Then the current in the circuit is given by `I=I_(m)sin (omegat+phi)` where `I_(m)=V_(m)/Z`...

i. 2p  ii. 4d  iii. 3d

Correct Answer - A `a cos (B -C) + b cos (C -A) + c co s(A -B)` `2R sin A co s(B -C) + 2R sin B cos (C -...

Correct Answer - D We have `r_(1) -r 4R sin.(A)/(2) [cos.(B)/(2) cos.(C)/(2) - sin.(B)/(2) sin.(C)/(2)]` `rArr 7 -1 = 4R sin.(A)/(2) cos ((B+C)/(2))` `rArr 6 = 4R sin^(2).(A)/(2)` `rArr 6 =...

(i) (A) Human Development (ii) (B) Growth (iii) (B) Developmental (iv) (B) 238 (v) (B) fetal

Waves in which a disturbance created at one place travels to distant points and keeps travelling unless stopped by an external force are known as travelling or progressive waves.  Properties of...