Practice Set 1
The angular speed of truck wheel is increased from 900 rpm to 2460 rpm in 26 seconds. The number of revolutions by the truck engine during this time is ………….. (Assuming the acceleration to be uniform).
28
Sep
The angular speed of truck wheel is increased from 900 rpm to 2460 rpm in 26 seconds. The number of revolutions by the truck engine during this time is ………….. (Assuming the acceleration to be uniform). Red light differs from blue light as they have: September 28, 2021 Category: JEE Mains Physics 2002-2019 Solved Video [...]
Four identical rectangular plates with length, l = 2 cm and breadth, b = 3/2 cm are arranged as shown in figure. The equivalent capacitance between A and C is Xε0/d. The value of x is ……. (Round off to the Nearest Integer)
28
Sep
Four identical rectangular plates with length, l = 2 cm and breadth, b = 3/2 cm are arranged as shown in figure. The equivalent capacitance between A and C is Xε0/d. The value of x is ……. (Round off to the Nearest Integer) b = 3/2 cm are arranged as shown in figure. The equivalent [...]
For VHF signal broadcasting, ….. km^2 of maximum service area will be covered by an antenna tower of height 30m, if the receiving antenna is placed at ground. Let radius of the earth be 6400 km. (Round off to the Nearest Integer) (Take π as 3.14)
28
Sep
For VHF signal broadcasting, ….. km^2 of maximum service area will be covered by an antenna tower of height 30m, if the receiving antenna is placed at ground. Let radius of the earth be 6400 km. (Round off to the Nearest Integer) (Take π as 3.14) ..... km^2 of maximum service area will be covered [...]
A current of 10 A exists in a wire of cross sectional area of 5 mm^2 with a drift velocity of 2 × 10^–3 ms^–1. The number of free electrons in each cubic meter of the wire is……..
28
Sep
A current of 10 A exists in a wire of cross sectional area of 5 mm^2 with a drift velocity of 2 × 10^–3 ms^–1. The number of free electrons in each cubic meter of the wire is…….. A current of 10 A exists in a wire of cross sectional area of 5 mm^2 with [...]
Which level of the single ionized carbon has the same energy as the ground state energy of hydrogen atom?
28
Sep
Which level of the single ionized carbon has the same energy as the ground state energy of hydrogen atom? Which level of the single ionized carbon has the same energy as the ground state energy of hydrogen atom? September 28, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
A boy is rolling a 0.5 kg ball on the frictionless floor with the speed of 20 ms^–1. The ball gets deflected by an obstacle on the way. After deflection it moves with 5% of its initial kinetic energy. What is the speed of the ball now ?
28
Sep
A boy is rolling a 0.5 kg ball on the frictionless floor with the speed of 20 ms^–1. The ball gets deflected by an obstacle on the way. After deflection it moves with 5% of its initial kinetic energy. What is the speed of the ball now ? Red light differs from blue light as [...]
A Carnot’s engine working between 400 K and 800 K has a work output of 1200 J per cycle. The amount of heat energy supplied to the engine from the source in each cycle is :
28
Sep
A Carnot’s engine working between 400 K and 800 K has a work output of 1200 J per cycle. The amount of heat energy supplied to the engine from the source in each cycle is : A Carnot's engine working between 400 K and 800 K has a work output of 1200 J per cycle. [...]
The output of the given combination gates represents :
28
Sep
The output of the given combination gates represents : The output of the given combination gates represents : September 28, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
For what value of displacement the kinetic energy and potential energy of a simple harmonic oscillation become equal ?
28
Sep
For what value of displacement the kinetic energy and potential energy of a simple harmonic oscillation become equal ? For what value of displacement the kinetic energy and potential energy of a simple harmonic oscillation become equal ? September 28, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
A solenoid of 1000 turns per metre has a core with relative permeability 500. Insulated windings of the solenoid carry an electric current of 5A. The magnetic flux density produced by the solenoid is : (permeability of free space = 4π × 10^–7 H/m)
28
Sep
A solenoid of 1000 turns per metre has a core with relative permeability 500. Insulated windings of the solenoid carry an electric current of 5A. The magnetic flux density produced by the solenoid is : (permeability of free space = 4π × 10^–7 H/m) Red light differs from blue light as they have: September 28, [...]