Day 601: JEE Mains Physics
5 questions. Try each one first, then open its answer.
Question 1
Ray Optics. Asked once: 2021 Paper 21
1Curved surfaces of a plano-convex lens of refractive index and a plano-concave lens of refractive index have equal radius of curvature as shown in figure. Find the ratio of radius of curvature to the focal length of the combined lenses.Tap an option to check your answer.
Question 2
Semiconductor Electronics. Asked once: 13 Apr 2023
18For the following circuit and given inputs and , choose the correct option for output ' 'Tap an option to check your answer.
Question 3
System of Particles and Rotational Motion. Asked once: 2021 Paper 10
15A solid cylinder of mass is wrapped with an inextensible light string and, is placed on a rough inclined plane as shown in the figure. The frictional force acting between the cylinder and the inclined plane is: [The coefficient of static friction, , is 0.4]Tap an option to check your answer.
Question 4
Current Electricity. Asked once: 27 Jan 2024
92Wheatstone bridge principle is used to measure the specific resistance of given wire, having length , radius . If is the resistance of wire, then specific resistance is: . If the length of the wire gets doubled then the value of specific resistance will be:Tap an option to check your answer.
Question 5
Electrostatics. Asked once: 8 Apr 2023
15Graphical variation of electric field due to a uniformly charged insulating solid sphere of radius , with distance from the centre is represented by:Tap an option to check your answer.