| 1 |
In an nihilation emitted photons moves in opposite directions to conserve. |
- A. Mass
- B. Charge
- C. Energy
- D. Momentum
|
| 2 |
unit of Plank's constant is same as that of. |
- A. Acceleration
- B. Angular momentum
- C. Linear momentum
- D. Entropy
|
| 3 |
The unit of Plank's constant 'h' is. |
- A. JC
- B. J/C
- C. JS
- D. J/S
|
| 4 |
The position has charge which is in magnitude equal to the charge on |
- A. Electron
- B. Proton
- C. <span style="font-weight: bold; color: rgb(106, 106, 106); font-family: arial, sans-serif; font-size: small;">β particle</span>
- D. All
|
| 5 |
Unit of Stephen's constant is |
- A. W m K<sup>-2</sup>
- B. W m<sup>-2</sup> K<sup>-4</sup>
- C. W m K<sup>-4</sup>
- D. None
|
| 6 |
By modern system of NAVSTAR, the speed any where on the earth can be determined to accuracy about. |
- A. 20 ms-1
- B. 10 ms-1
- C. 2 cms-1
- D. 2 ms-1
|
| 7 |
The uncertainty principle was given by |
- A. De-Broglie
- B. Heisenberg
- C. Einstein
- D. Max Planck
|
| 8 |
Anti particle of electron is |
- A. Proton
- B. Photon
- C. Neutron
- D. Positron
|
| 9 |
In 1905, the special theory of relativity was proposed by |
- A. Einstein
- B. Bohr
- C. Maxwell
- D. De Broglie
|
| 10 |
When platinum wire is heated, it changes to cherry red at temperature. |
- A. 500<sup>o</sup>C
- B. 900<sup>o</sup>C
- C. 1100<sup>o</sup>C
- D. 1300<sup>o</sup>C
|