[" If "1/2" is a moot af equabion "],[qquad [" If "-5/4=0" the the value of "v]]

If u and v are the roots of the equation x^2+2x-2=0 , then the value of log_2(u^2+v^2)-log_2u^2-log_2v^2 is 2 (2) -1 (3) 1 (4) 0 (5) -2

2u+3v=2,4u-6v=0 the value of u= ……….

In a photoelectric emission , from a black surface, threshold frequency is v_0 . For two incident radiations of frequencies v_1 and v_2 , the maximum values of kinetic energy of the photoelectrons emitted in the two cases is in the ration 1,P . If pv_1 -v_2 =2v_0 , find the value of |p|. {:(0,1,2,3,4,5,6,7,8,9):}

If u and v are real numbers and (u+3)^(2)+(v+5)^(2)=0 , then find the values of u and v.

If | [ x , 2 , 4 ] , [ 3 , -1 , 2 ] , [ 4, 5 , 1 ] | = 0 , find the value of x

For a certain metal v = 2 v_(0) and the electrons come out with a maximum velocity of 4 xx 10^(6) m/s . If the value of v = 5 v_(0) , then maximum velocity of the photoelectrons will be

For a certain metal v = 2 v_(0) and the electrons come out with a maximum velocity of 4 xx 10^(6) m/s . If the value of v = 5 v_(0) , then maximum velocity of the photoelectrons will be

If [[2x,1],[5,x+2y]]=[[4,1],[5,0]] then find the value of x+y.