ISC Class 11 Physics Solutions. We covered all the ISC Class 11 Physics Solutions MCQs in this post for free so that you can practice well for the exam.
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ISC Class 11 Physics Objective with Solutions for Students
With an increase in temperature, the resistance of a pure semiconductor:
(a) first increases and then decreases
(b) remains the same
(c) increases
(d) decreases
Option d – decreases
The heat of the sun reaches us by:
(a) Conduction
(b) Convection
(c) Radiation
(d) None of these
Option c – Radiation
The speeds of the three cars are in the ratio 2:3:4. The ratio between the time taken by these cars to travel the same distance is:
(a) 2:3:4
(b) 4:3:6
(c) 3:4:6
(d) 6:4:3
Option d – 6:4:3
Which of the following is not a conservative force?
(a) Gravitational force
(b) Frictional force
(c) Electrostatic force
(d) Magnetostatic force
Option b – Frictional force
We observe objects around us due to:
(a) Refraction of light
(b) Reflection of light
(c) Absorption of light
(d) All of these
Option b – Reflection of light
‘Dynamo’ is a device that converts:
(a) Chemical energy into electrical energy
(b) Electrical energy into mechanical energy
(c) Mechanical energy into electrical energy
(d) Electrical energy into chemical energy
The substance used as a moderator and coolant in nuclear reactors is:
(a) Ordinary water
(b) Heavy water
(c) Liquid Ammonia
(d) Liquid Hydrogen
Option b – Heavy water
Photovoltaic cells are:
(a) Solar cells
(b) Thermal cells
(c) Sulphur cells
(d) Molar cells
Option a – Solar cells
The image formed by a plane mirror is:
(a) real and erect
(b) virtual and inverted
(c) virtual and erect
(d) real and inverted
Option c – virtual and erect
Water rises up a capillary tube because of:
(a) Elasticity
(b) Surface tension
(c) Viscosity
(d) its density
Option b – Surface tension
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