Practice Set 1
A transmitting station releases waves of wavelength 960 m. A capacitor of 2.56 μF is used in the resonant circuit. The self inductance of coil necessary for resonance is ____ × 10^–8 H.
26
Sep
A transmitting station releases waves of wavelength 960 m. A capacitor of 2.56 μF is used in the resonant circuit. The self inductance of coil necessary for resonance is ____ × 10^–8 H. A transmitting station releases waves of wavelength 960 m. A capacitor of 2.56 μF is used in the resonant circuit. The self [...]
Two coherent light sources having intensity in the ratio 2x produce an interference pattern. The ratio Imax − Imin / Imax + Imin will be :
26
Sep
Two coherent light sources having intensity in the ratio 2x produce an interference pattern. The ratio Imax − Imin / Imax + Imin will be : Two coherent light sources having intensity in the ratio 2x produce an interference pattern. The ratio Imax − Imin / Imax + Imin will be : September 26, 2021 [...]
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : The escape velocities of planet A and B are same. But A and B are of unequal mass. Reason R : The product of their mass and radius must be same, M1R1 = M2R2 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 : The escape velocities of planet A and B are same. But A and B are of unequal mass. Reason R : The product of their mass and radius must be same, M1R1 [...]
The current (i) at time t = 0 and t = ∞ respectively v for the given circuit is :
26
Sep
The current (i) at time t = 0 and t = ∞ respectively v for the given circuit is : The current (i) at time t = 0 and t = ∞ respectively v for the given circuit is : September 26, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 [...]
In an octagon ABCDEFGH of equal side, what is the sum of → A B + → A C + → A D AB→+AC→+AD→ + → A E + → A F + → A G + → A H ′ + AE→+AF→+AG→+AH′→ if, → A O = 2 ^ i + 3 ^ j − 4 ^ k
26
Sep
In an octagon ABCDEFGH of equal side, what is the sum of → A B + → A C + → A D AB→+AC→+AD→ + → A E + → A F + → A G + → A H ′ + AE→+AF→+AG→+AH′→ if, → A O = 2 ^ i + 3 ^ j [...]
Two radioactive substances X and Y originally have N1 and N2 nuclei respectively. Half life of X is half of the half life of Y. After three half lives of Y, number of nuclei of both are equal. The ratio N1/N2 will be equal to :
26
Sep
Two radioactive substances X and Y originally have N1 and N2 nuclei respectively. Half life of X is half of the half life of Y. After three half lives of Y, number of nuclei of both are equal. The ratio N1/N2 will be equal to : number of nuclei of both are equal. The ratio [...]
A solid sphere of radius R gravitationally attracts a particle placed at 3R form its centre with a force F1. Now a spherical cavity of radius (R/2) is made in the sphere (as shown in figure) and the force becomes F2. The value of F1 : F2 is :
26
Sep
A solid sphere of radius R gravitationally attracts a particle placed at 3R form its centre with a force F1. Now a spherical cavity of radius (R/2) is made in the sphere (as shown in figure) and the force becomes F2. The value of F1 : F2 is : The logic circuit shown above is [...]
Magnetic fields at two points on the axis of a circular coil at a distance of 0.05 m and 0.2 m from the centre are in the ratio 8 : 1. The radius of coil is ____.
26
Sep
Magnetic fields at two points on the axis of a circular coil at a distance of 0.05 m and 0.2 m from the centre are in the ratio 8 : 1. The radius of coil is ____. Magnetic fields at two points on the axis of a circular coil at a distance of 0.05 m [...]
Match List – I with List – II: Choose the correct answer from the options given below:
26
Sep
Match List – I with List – II: Choose the correct answer from the options given below: Match list I with list II. Choose the correct answer from the options given below: September 26, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
An engine of a train, moving with uniform acceleration, passes the signal-post with velocity u and the last compartment with velocity v. The velocity with which middle point of the train passes the signal post is:
26
Sep
An engine of a train, moving with uniform acceleration, passes the signal-post with velocity u and the last compartment with velocity v. The velocity with which middle point of the train passes the signal post is: An engine of a train moving with uniform acceleration passes the signal-post with velocity u and the last compartment [...]