The electric current in the circuit is given as �. The r.m.s current for the period � to � is _____.
The electric current in the circuit is given as i = i0 (t/T) Q. The electric current in the circuit […]
Uncategorized
Uncategorized
The magnitudes of power of a biconvex lens (refractive index 1.5) and that of a plano-concave lens (refractive index = 1.7) are same. If the curvature of plano-concave lens exactly matches with the curvature of back surface of the biconvex lens, then ratio of radius of curvature of front and back surface of the biconvex lens is ______.
The magnitudes of power of a biconvex lens and a plano concave lens are same Q. The magnitudes of power
Uncategorized
Two point charges of 1 nC and 2 nC are placed at the two corners of equilateral triangle of side 3 cm. The work done in bringing a charge of 3 nC from infinity to the third corner of the triangle is ____ μJ.
Two point charges of 1 nC and 2 nC are placed at the two corners of equilateral triangle of side
Uncategorized
A block of mass 5 kg is moving on an inclined plane which makes an angle of 30° with the horizontal. Friction coefficient between the block and inclined plane surface is √3/2. The force to be applied on the block so that the block will move down without acceleration is ____ N. �
A block of mass 5 kg is moving on an inclined plane which makes an angle of 30 degree with
Uncategorized
For the two cells having same EMF E and internal resistance r, the current passing through the external resistor 6Ω is same when both the cells are connected either in parallel or in series. The value of internal resistance r is _____ Ω.
For the two cells having same EMF E and internal resistance r the current through external resistor 6 ohm is
Uncategorized
Statement I : A plane wave after passing through prism remains as plane wave but passing through small pin hole may become spherical wave. Statement II : The curvature of a spherical wave emerging from a slit will increase for increasing slit width
Given below are two statements A plane wave after passing through prism remains as plane wave but passing through small
Uncategorized
The magnetic field at the centre of a current carrying circular loop of radius R is 16 μT. The magnetic field at a distance x = √3 R on its axis from the centre is ______ μT.
The magnetic field at the centre of a current carrying circular loop of radius R is 16 μT Q. The
Uncategorized
Two wires A and B made of different materials of lengths 6.0 cm and 5.4 cm, respectively and area of cross sections 3.0 × 10⁻⁵ m² and 4.5 × 10⁻⁵ m², respectively are stretched by the same magnitude under a given load. The ratio of the Young’s modulus of A to that of B is x : 3. The value of x is _____.
Two wires A and B made of different materials of lengths 6.0 cm and 5.4 cm respectively are stretched by
Uncategorized
The electric field of an electromagnetic wave travelling through a medium is given by � then the refractive index of the medium is ______. (All given measurement are in SI units)
The electric field of an electromagnetic wave travelling through a medium is given by E(x,t) = 25 sin (2.0 ×
Uncategorized
Let A = �, �] and B be two matrices such that A¹⁰⁰ = 100B + I. Then the sum of all the elements of B¹⁰⁰ is ______.
Let A be a matrix and B be such that A^100 = 100B + I Q. Let A = ⎡