A signal of 5 kHz frequency is amplitude modulated on a carrier wave of frequency 2 MHz. The frequencies of the resultant signal is/are :
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Consider the following reaction: xMnO4−+yC2O42−+zH+3/4 xMn2++2yCO2+2zH2O The values of x, y and z in the reaction are, respectively:
Which of the following compounds is not an antacid ?
If z is a complex number such that ∣z∣≥2, then the minimum value of ∣∣z+21∣∣
Which of the vitamins given below is water soluble ?
Let y(x) be the solution of the differential equation (xlogx)dxdy+y=2xlogx,(x≥1) Then y(e) is equal to :
Let a and b be the roots of equation px2+qx+r=0,p=0.. If p, q, r are in A.P. and α1+β1=4, then the value of ∣α−β∣ is
Assuming human pupil to have a radius of 0.25 cm and a comfortable viewing distance of 25 cm, the minimum separation between two objects that human eye can resolve at 500 nm wavelength is :
In which of the following reactions H2O2 acts as a reducing agent ?