DCE CEE Previous Year Paper 2000 - JEE MCQ

Two different metals are joined end to end. One end is kept at constant temperature and other end is heated to a very high temperature. The graph depicting the therm emf is :

According to Gauss law, electric field of an infinitely long straight wire is proportional to :

If λ = 10 Å then it corresponds to :

The displacement of a SHM doing oscillation when KE = PE (amplitude = 4 cm) :
 

A radioactive nucleus undergoesα-emission to form a stable element. What will be the recoil velocity of the daughter nucleus if v is the velocity of α-emission?

There are two wires of same material and same length while the diameter of second wire is two times the diameter of first wire, then the ratio of extension produced in the wires byapplying same load will be :

In H2 atom which quantity is integral multiple of (h/2π)?

The equivalent capacitance is :

 

Null point with 1 V cell comes out to be 55 cm and with R = 10 Ω it is 50 cm. What is the

Amount of light entering into the camera depends upon :

The motion of a particle is described by the equation u = at. The distance travelled by particle in first 4 s is :

Which of the following quantities does not depends upon the orbital radius of the satellite?

The angular momentum of a system of particle is conserved :

What is the source of energy in stars ?

8 mercury drops coalesce to form 1 mercury drop, the energy changes by a factor of :

A capacitor in an ideal LC circuit is fully charged by a DC source. Then it is disconnected from DC source, the current in the circuit :

The phenomenon by which stars recedes from each other is explained by : ​

If M is magnetic moment and B is magnetic field, then the torque is given :

Rainbows are formed by :

The heavenly body is receding from earth, such that the fractional change in λ is 1, then its velocity is :

The temperature of stars is determined by :

When white light enters a prism, it gets split into its constituent colours. This is due to :

 4 eV is the energy of the incident photon and the work function is 2eV. The stopping potential will be :

The formation of energy bands in solids is explained by :​

The velocity of efflux of a liquid through an orifice in the bottom of the tank does not depend upon :

Conversion of galvanometer to ammeter is done by connecting a shunt of :

Analogue of mass in rotational motion is :