List of practice Questions

\(RP\) and \(RQ\) are the two tangents to the circle with centre \(O\) and \(∠POQ=110°\), then \(∠PRQ=\) _____ .
RP and RQ are the two tangents to the circle with centre O and ∠POQ=110°,then ∠PRQ=__.
For a convex lens magnification of virtual image is possible only when the object distance is
Focal length of the eye lens changes with the help of
Direction of electric current and direction of electrons in a conductor are
The focal length of a lens depends on
The defect by which some people can not see near objects clearly but can see distant objects is called
A person is advised to use 5D lens. What is its focal length?
In an eye, muscular diaphragm between aqueous humour and the lens is called
Angle of vision of a healthy adult human is
In series connection of resistors, if one of the resistors breaks down, then
A bulb is marked 60 W and 240 V. Find the resistance in the bulb.
Usage of fuse in a circuit prevents from
Obstruction to the motion of electrons in a conductor is called
Which of the following is the equation for given circuit as per Kirchoff's loop law?
Which of the following is the equation for given circuit as per Kirchoff's loop law
Which of the following relation represents Ohm's law?
SI unit of resistivity is
Multimeter can be used to measure
The size of the image formed by a convex mirror is always
The spherical mirror whose reflecting surface curved outward is
The type of mirror used in solar cooker is
The minimum distance of an object from the pole to obtain real image in case of a concave mirror is
What is the focal length of a plano-convex lens if 'R' is the radius of curvature and ‘n’ is the refractive index?
The magnification of a concave lens is always
Which of the following is true in case of a concave lens?
What is lens maker's formula?