BITSAT Practice Test - 20 - JEE MCQ
30 Questions MCQ Test - BITSAT Practice Test - 20
Same current is flowing in two alternating circuits. The first circuit contains only inductance and the other contains only a capacitor. If the frequency of the e.m.f. of A.C. is increased, the effect on the value of the current will be
Ionization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. the spectral lines emitted by hydrogen atoms according to Bohr's theory will be
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An infinite number of identical capacitors, each of capacitance 1 μ F, are connected as in the figure. The equivalent capacitance between 'A' and 'B' is
If 4 * 1020 eV of energy is required to move a charge of 0•25 coluomb between two points, the p.d between them is
On a rough horizontal surface, a body of mass 2 kg is given a velocity of 10 m/s. If the coefficient of friction is 0.2 and g=10 m/s2, the body will stop after covering a distance of
The temperature of a body falls from 50oC to 40oC in 10 minutes. If the temperature of the surroundings is 20oC Then temperature of the body after another 10 minutes will be
A river water is flowing at 0.5 m-s⁻1. The shearing stress between horizontal layers at a distance of 10 cm of the river water is (Viscosity of water = 0.01 poise)
If an air-bubble of radius 0.4 mm at a depth h in water having surface tension of 72*10⁻3 N-m⁻1 and density 1000 kg-m⁻3 is in equilibrium then, the value of h is (Take g=10 m-s⁻2)
A stone projected with a velocity u at an angle θ with the horizontal reaches maximum height H₁. When it is projected with velocity u at an angle (π/2 -θ) with the horizontal, it reaches maximum height H₂. The relation between the horizontal range R of the projectile, H₁ and H₂ is
The horizontal range is four times the maximum height attained by a projectile. The angle of projection is
An impulse applied to a moving object with the force at an angle of 120 o with respect to the velocity vector. The angle between impulse vector and change in momentum vector is
The moment of inertia of a thin uniform circular disc about one of the diameters is I. Its moment of inertia about an axis perpendicular to the circular surface and passing through the centre is
A point object O is placed at 15 cm in front of a glass rod having spherical end of radius of curvature 30 cm. The image would be formed at
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