Which of the following will be a better shield against gamma rays ?

Related Mcqs:

Radioactive decay obeys which one of the following law ?

A. N=Noe-λt B. N=Noeλt C. N=Noe-λt/2 D. No=N(1+eλt)...

Radioactive materials can be identified by measuring their_______________?

A. Hardness B. Density C. Mass D. Half life...

If one or more of the neutrons emitted during fission cab be used to build up further fission then the reaction is self-sustained and is known as __________________?

A. Fission reaction B. Fusion reaction C. Chain reaction D. Chemical reaction...

Pair production cannot take place in a vacuum as ________ is not conserved ?

A. Energy B. Charge C. Mass D. MomentumB....

A device for producing high-velocity nuclei is ________________?

A. Cloud chamber B. Linear accelerator C. A mass spectrograph D. Wilson cloud chamber...