Binary conversion of decimal number 128 We divide the given decimal number with 2 and note down the remainders 128/2 = 64 ( remainder 0)... View Article
We can use numbers from 0 to 9 to form 9-digit code Case 1:If the code has a repetition of numbers then the possibilities are For each of the... View Article
According to the Extended Euclidean Algorithm The multiplicative inverse of an integer b in Zn will exist only if GCD(n,b) = 1 Here n = 26 and b... View Article
By observing the given sequence we get an idea that the pattern is quadratic We can write each term as 12 + 1 = 2 22 + 2 = 6 32 + 3 = 12 42 + 4 =... View Article
An object is moving in a straight line with constant acceleration. It covers 65 m distance in 5th second and 105 m distance in 9th second. The... View Article
A body has a charge of –2µC. If it has 2.5 × 10^13 protons, then how many electrons the body has? Answer: If the body has 2.5 × 10^13 protons,... View Article
In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption? (a)... View Article
The figure here shows a smooth ‘looping-the-loop’ track. A particle, of mass m, is released from point A, as shown in the figure. If H = 3r,... View Article
The standard reduction electrode potential of four elements A, B, C and D are 0.8 V, 0.2 V, –1.8 V and –0.5 V respectively, the element with the... View Article
A batsman hits back a ball straight in the direction of the bowler without changing its initial speed of 12 ms⁻¹. If the mass of the ball is 0.15... View Article
A cyclotron’s oscillating frequency is 10 MHz. The radius of dee is 60 cm. What is the kinetic energy of proton produced by the accelerator, if... View Article
Two point charges 8q and -2q are located at x = 0 and x = L respectively. The point on the x-axis at which the net electric field is zero due to... View Article
Earth’s magnetic field at the magnetic equator is approximately 0.4 g. Earth’s dipole moment is (re = 6.4 × 106 m) (a) 4 × 10-5 Am2 (b) 4 × 102... View Article
Two tuning forks having frequencies 450 Hz and 448 Hz are tuned together. The time interval between successive instants of maximum intensity will... View Article
Two resistors of resistance r and 3r have thermal coefficients of resistance α and 2α respectively. The equivalent thermal coefficient of... View Article
A particle is subjected to two simple harmonic motions (both along the x-axis) which are given by . The path of the particle will be (a) a... View Article
Even when rain is falling vertically downwards the front screen of a moving car gets wet. On the other hand, the back screen remains dry. Why?... View Article
