1 The figure below shows currents in a part of an electric circuit. The current I is A) 1.7amp B) 3.7amp C) 1.3amp D) 1amp
2 ln an electromagnetic wave A) power is transmitted along the magnetic field B) power is transmitted along the electric field C) power is equally transferred along the electric and magnetic fields D) power is transmitted in a direction perpendicular to both the fields
3 A particle covers half of the circle of radius r. Then the displacement and distance of the particle are respectively A) $2\pi r, 0$ B) $2r, \pi r$ C) $\frac{\pi r}{2}$, 2r D) $\pi r, r$
4 A block of mass 5 kg resting on a horizontal surface is connected by a cord, passing over a light frictionless pulley to a hanging block of mass 5 kg. The coefficient of kinetic friction between the block and the surface is 0.5. Tension in the cord is : (g = 9.8 m/sec2) A) 49 N B) Zero C) 36.75 N D) 2.45 N
5 A planet revolves in an elliptical orbit around the sun. The semi-major and semi-minor axes are a and b. Then the square of time period T is directly proportional to A) $a^{3}$ B) $b^{3}$ C) $\left(\frac{a + b}{2}\right)^3$ D) $\left(\frac{a - b}{2}\right)^3$
6 The surface of a metal is illuminated with a light of 400 nm. The kinetic energy of the ejected Photoelectrons was found to be 1.68 eV. The work function of the metal is? (hc = 1240eV.nm) A) 3.09 eV B) 1.42 eV C) 1.51eV D) 1.68 eV
7 The work done by an uniform magnetic field on a moving charge is A) zero because $\overrightarrow{F}$ acts parallel to $\overrightarrow{v}$ B) positive because $\overrightarrow{F}$ acts perpendicular to $\overrightarrow{v}$ C) zero because $\overrightarrow{F}$ acts perpendicular to $\overrightarrow{v}$ D) negative because $\overrightarrow{F}$ acts parallel to $\overrightarrow{v}$
8 Arrange the following particles in increasing order of values of e/m ratio : electron (e), proton (p), neutron (n) and $\alpha$-particle ($\alpha$) - A) n, p, e, $\alpha$ B) n, $\alpha$, p, e C) n, p, $\alpha$, e D) e, p, n, $\alpha$
9 In a closed insulated container a liquid is stirred with a paddle to increase its temperature. In this process which of the following is true? A) $\triangle E = W = Q = 0$ B) $\triangle E \neq 0, Q = W = 0$ C) $\triangle E = W \neq 0, Q= 0$ D) $\triangle E = Q \neq 0, W = 0$
10 $If\omega =\frac{-1 + \sqrt{3i}}{2} $ then $ (3+\omega+\omega^{2})^4$ is A) 16 B) -16 C) $16\omega$ D) $16\omega^{2}$
11 If the lines 3x -4y + 4 = 0 and 6x- 8y-7 = 0 are tangents to a circle, then radius of the circle is A) 3/4 B) 2/3 C) 1/4 D) 5/2
12 The area under the curve y = |cos x - sin x|, 0≤x≤$\frac{\pi}{2}$ A) $2\sqrt{2}$ B) $2\sqrt{2}-2$ C) $2\sqrt{2}+2$ D) 0
13 The value of x in the interval [4,9] at which the function f(x) = √x satisfies the mean value theorem is A) 13/4 B) 17/4 C) 21/4 D) 25/4
