JEE Mains Physics 2002-2019 Solved Video Solutions
In a parallel plate capacitor set up, the plate area of capacitor is 2 m^2 and the plates are separated by 1m. If the space between the plates are filled with a dielectric material of thickness 0.5 m and area 2m^2 (see fig.) the capacitance of the set-up will be ……….. ε0. (Dielectric constant of the material = 3.2) (Round off to the Nearest Integer)
28
Sep
In a parallel plate capacitor set up, the plate area of capacitor is 2 m^2 and the plates are separated by 1m. If the space between the plates are filled with a dielectric material of thickness 0.5 m and area 2m^2 (see fig.) the capacitance of the set-up will be ……….. ε0. (Dielectric constant of [...]
The energy dissipated by a resistor is 10 mJ in 1s when an electric current of 2 mA flows through it. The resistance is ………… Ω. (Round off to the Nearest Integer)
28
Sep
The energy dissipated by a resistor is 10 mJ in 1s when an electric current of 2 mA flows through it. The resistance is ………… Ω. (Round off to the Nearest Integer) The energy dissipated by a resistor is 10 mJ in 1s when an electric current of 2 mA flows through it. The resistance [...]
Red light differs from blue light as they have:
28
Sep
Red light differs from blue light as they have: Red light differs from blue light as they have: September 28, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes.
28
Sep
Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes. Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes. September 28, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
The magnetic field in a region is given by → B = B 0 ( x a ) ^ k . A square loop of side d is placed with its edges along the x and y axes. The loop is moved with a constant velocity → v = v 0 ^ i. The emf induced in the loop is :
28
Sep
The magnetic field in a region is given by → B = B 0 ( x a ) ^ k . A square loop of side d is placed with its edges along the x and y axes. The loop is moved with a constant velocity → v = v 0 ^ i. The emf [...]
Statement I : A cyclist is moving on an unbanked road with a speed of 7 kmh–1 and takes a sharp circular turn along a path of radius of 2m without reducing the speed. The static friction coefficient is 0.2. The cyclist will not slip and pass the curve(g = 9.8 m/s^2) Statement II : If the road is banked at an angle of 45°, cyclist can cross the curve of 2m radius with the speed of 18.5 kmh^–1 without slipping. In the light of the above statements, choose the correct answer from the options given below.
28
Sep
Statement I : A cyclist is moving on an unbanked road with a speed of 7 kmh–1 and takes a sharp circular turn along a path of radius of 2m without reducing the speed. The static friction coefficient is 0.2. The cyclist will not slip and pass the curve(g = 9.8 m/s^2) Statement II : [...]
A resistor develops 500 J of thermal energy in 20s when a current of 1.5 A is passed through it. If the current is increased from 1.5 A to 3A, what will be the energy developed in 20 s.
28
Sep
A resistor develops 500 J of thermal energy in 20s when a current of 1.5 A is passed through it. If the current is increased from 1.5 A to 3A, what will be the energy developed in 20 s. A resistor develops 500 J of thermal energy in 20s when a current of 1.5 A [...]
A bimetallic strip consists of metals A and B. It is mounted rigidly as shown. The metal A has higher coefficient of expansion compared to that of metal B. When the bimetallic strip is placed in a cold both, it will :
28
Sep
A bimetallic strip consists of metals A and B. It is mounted rigidly as shown. The metal A has higher coefficient of expansion compared to that of metal B. When the bimetallic strip is placed in a cold both, it will : Draw the output signal Y in the given combination of gates :- September [...]
In order to determine the Young’s Modulus of a wire of radius 0.2 cm (measured using a scale of least count = 0.001 cm) and length 1m (measured using a scale of least count = 1 mm), a weight of mass 1kg (measured using a scale of least count = 1g) was hanged to get the elongation of 0.5 cm (measured using a scale of least count 0.001 cm). What will be the fractional error in the value of Young’s Modulus determined by this experiment ?
28
Sep
In order to determine the Young’s Modulus of a wire of radius 0.2 cm (measured using a scale of least count = 0.001 cm) and length 1m (measured using a scale of least count = 1 mm), a weight of mass 1kg (measured using a scale of least count = 1g) was hanged to get [...]
The refractive index of a converging lens is 1.4. What will be the focal length of this lens if it is placed in a medium of same refractive index ? (Assume the radii of curvature of the faces of lens are R1 and R2 respectively)
28
Sep
The refractive index of a converging lens is 1.4. What will be the focal length of this lens if it is placed in a medium of same refractive index ? (Assume the radii of curvature of the faces of lens are R1 and R2 respectively) Draw the output signal Y in the given combination of [...]