01. Unit of surface tension ...........

Ans : (Daily Test - 01)

02. In the gas equation, , the dimension of a is ............

Ans : (WatJEEP-1)

03. Two tubes A and B are in series Radius of A is R and that of B is 2R. If water flows through A with velocity v, then what is the velocity of water through B ?

Ans : v/4 (VST-F-03)

04. When light travels from glass to air, the incident angles is and the refracted angle is , the true relation is ..................

Ans : (VST-F-05)

05. In which thermodynamic process volume remains constant ?

a) isothermal b) isochoric

c) adiabatic d) isobaric

Ans : Isochoric (WATJEE-P-06)

06. In silicon, when phosphorus is doped, what is formed ?

Ans : N-type semiconductor. (DT-25)

07. Work done in given cyclic process is ...............

Ans : (VST-F-03)

08. The given figure represents the material which is

a) ferromagnetic b) dia magnetic

c) paramagnetic d) magnetic bar

Ans : Diamagnetic (VST-04)

09. A body falls from a height. The v-s graph is represented by

a) b)

c) d)

Ans : (VST-F-03)

10. Special theory of relativity states that ..........

Ans : The velocity of light remain unaffected in any inertial frame. (DT-29)

11. For effective nuclear forces, the distance should be ...........

Ans : (WATJEEP-20)

12. Three capacitors 2, 3 respectively are combined with one another. What is the minimum effective capacitance ?

Ans : (PMT/PDT-F-3)

13. The angular momentum of a particle

a) perpendicular to the plane of surface in which it moves

b) along the plane of motion

c) inclined at any angle with the plane

d) has not particular direction

Ans : is perpendicular to the plane of surface in which it moves. (AIEEE-F-05)

14. Two long capillary tube A and B of radius dipped in same liquid. Then ........

Ans : Capillary rise is more in A than B.(WATJEE-15)