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Reflection and Refraction of Light
access_time 2022-12-03T05:30:55.830Z face Sonika Agarwal
Reflection and Refraction of Light Que - Define focus . If the radius of curvature of mirror is 20 cm find its focal length Que - Define power of lens ? what is its unit? Find the power of lens having focal length 2 m and focal length 50 cm Que -- What is refractive index ? what is its unit ? If ref...
Periodic Classification of Periodic Table
access_time 2022-12-03T04:36:13.902Z face Sonika Agarwal
Periodic Classification of Periodic Table Periodic Classification of Compounds and Trends Important questions Que 1 How many elements are known to us Ans 118 elements are known to us and which 94 are naturally occurring Que 2 What is Dobereiner's Traids Ans In 1817 scientist Dobereiner arrange the e...
Gravitation
access_time 2022-11-28T20:10:07.239Z face Sonika Agarwal
Gravitation Gravitational force between two point masses F=GMm/r^2 Gravitational field strength distance at a point in gravitational field is defined as gravitational force per unit massE=F/m Gravitational potential Gravitational potential at a point in a gravitational field is defined as negative o...
Heat and Thermodynamics
access_time 2022-11-28T19:57:48.115Z face Sonika Agarwal
Heat and Thermodynamics Heat --Heat is a Energy which is transferred between system and the surroundings to the temperature Difference Unit of heat is called cal it is defined as the amount of heat required to raise the temperature of 1 gram of water through 1°C Specific Heat Capacity It is the quan...
Mechanical Properties of Solids - Physics
access_time 2022-11-28T19:28:13.584Z face Sonika Agarwal
Mechanical Properties of Solids What is elasticity and plasticity define elastic limit Elasticity is property of solids by virtue of which the object regains its shape and size after the removal of deforming force Plasticity is the property of solid by virtue of which the object does not regain its ...