Radiations are used for the treatment of skin of a patient is:
A. Alpha rays
B. Gamma rays
C. Beta rays
D. X-rays
Which of the following will be a better shield against gamma rays:
A. Ordinary water
B. Heavy water
C. Lead
D. Aluminium
Pair production can take place only with:
A. X-rays
B. Gamma rays
C. UV-rays
D. IR-rays
A device for producing high-velocity nuclei is:
A. Cloud chamber
B. Linear accelerator
C. A mass spectrograph
D. Wilson cloud chamber
The dimension of force is:
A. MLT-1
B. MLT-2
C. ML-1T
D. ML-1T-2
Number of significant figures in 0.0173 is:
A. 3
B. 4
C. 5
D. 2
The error in measurement may occur due to:
A. The inexperience of a person
B. The faulty apprentice
C. Inappropriate method
D. Due to all reasons in A, B and C
Prefix deca represents:
A. 10 Raised to power 1
B. 10 Raised to power 2
C. 10 Raised to power 3
D. 10 Raised to power -1
1024 can be written in scientific notation as:
A. 1.024×103
B. 2 Raised to power 10
C. 0.000976
D. 1/0.00097
Which one is the highest power multiple:
A. Giga
B. Beta
C. Mega
D. Deca
