JEE Mains Physics 2002-2019 Solved Video Solutions
Given below are two statements : Statement I : A second’s pendulum has a time period of 1 second. Statement II : It takes precisely one second to move between the two extreme positions. In the light of the above statements, choose the correct answer from the options given below :
28
Sep
Given below are two statements : Statement I : A second’s pendulum has a time period of 1 second. Statement II : It takes precisely one second to move between the two extreme positions. In the light of the above statements, choose the correct answer from the options given below : Find the peak current [...]
A scooter accelerates from rest for time t1 at constant rate a1 and then retards at constant rate a2 for time t2 and comes to rest. The correct value of t1/t2 will be :-
28
Sep
A scooter accelerates from rest for time t1 at constant rate a1 and then retards at constant rate a2 for time t2 and comes to rest. The correct value of t1/t2 will be :- A scooter accelerates from rest for time t1 at constant rate a1 and then retards at constant rate a2 for time [...]
A radioactive sample is undergoing α decay. At any time t1, its activity is A and another time t2, the activity is A/5. What is the average life time for the sample ?
28
Sep
A radioactive sample is undergoing α decay. At any time t1, its activity is A and another time t2, the activity is A/5. What is the average life time for the sample ? A radioactive sample is undergoing α decay. At any time t1 its activity is A and another time t2 the activity is [...]
Draw the output signal Y in the given combination of gates :-
28
Sep
Draw the output signal Y in the given combination of gates :- Draw the output signal Y in the given combination of gates :- September 28, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
Two masses A and B, each of mass M are fixed together by a massless spring. A force acts on the mass B as shown in figure. If the mass A starts moving away from mass B with acceleration ‘a’, then the acceleration of mass B will be :-
28
Sep
Two masses A and B, each of mass M are fixed together by a massless spring. A force acts on the mass B as shown in figure. If the mass A starts moving away from mass B with acceleration ‘a’, then the acceleration of mass B will be :- each of mass M are fixed [...]
An inclined plane making an angle of 30° with the horizontal is placed in a uniform horizontal electric field 200 N/C as shown in the figure. A body of mass 1kg and charge 5 mC is allowed to slide down from rest at a height of 1m. If the coefficient of friction is 0.2, find the time taken by the body to reach the bottom. [g=9.8m/s^2, sin 30º = 1/2 ; cos 30º = √3/2]
28
Sep
An inclined plane making an angle of 30° with the horizontal is placed in a uniform horizontal electric field 200 N/C as shown in the figure. A body of mass 1kg and charge 5 mC is allowed to slide down from rest at a height of 1m. If the coefficient of friction is 0.2, find [...]
Find the peak current and resonant frequency of the following circuit (as shown in figure).
28
Sep
Find the peak current and resonant frequency of the following circuit (as shown in figure). Find the peak current and resonant frequency of the following circuit (as shown in figure). September 28, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
The recoil speed of a hydrogen atom after it emits a photon in going from n = 5 state to n = 1 state will be :-
26
Sep
The recoil speed of a hydrogen atom after it emits a photon in going from n = 5 state to n = 1 state will be :- The recoil speed of a hydrogen atom after it emits a photon in going from n = 5 state to n = 1 state will be :- September [...]
Given below are two statements : Statement I : An electric dipole is placed at the centre of a hollow sphere. The flux of electric field through the sphere is zero but the electric field is not zero anywhere in the sphere. Statement II : If R is the radius of a solid metallic sphere and Q be the total charge on it. The electric field at any point on the spherical surface of radius r (< R) is zero but the electric flux passing through this closed spherical surface of radius r is not zero. In the light of the above statements, choose the correct answer from the options given below:
26
Sep
Given below are two statements : Statement I : An electric dipole is placed at the centre of a hollow sphere. The flux of electric field through the sphere is zero but the electric field is not zero anywhere in the sphere. Statement II : If R is the radius of a solid metallic sphere [...]
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : For a simple microscope the angular size of the object equals the angular size of the image. Reason R : Magnification is achieved as the small object can be kept much closer to the eye than 25 cm and hence it subtends a large angle. In the light of the above statements choose the most appropriate answer from the options given below :
26
Sep
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : For a simple microscope the angular size of the object equals the angular size of the image. Reason R : Magnification is achieved as the small object can be kept much closer [...]