SINDH MDCAT 2020 PAPER

( PART 3 )

1. In transmission from grid station, power losses are minimized by:

 
 
 
 

2. The domestic electricity supply has a frequency of:

 
 
 
 

3. PIV stands for:

 
 
 
 

4. In full wave rectification, the diodes are used:

 
 
 
 

5. The wavelength associated with an electron is of the order of:

 
 
 
 

6. Which photon carries the most energy?

 
 
 
 

7. Which one of the following series lies in the ultraviolet region?

 
 
 
 

8. The main difference between X-rays and ? rays is:

 
 
 
 

9. There are initially 400 atoms in a radioactive sample. What of atoms after 3 half-life?

 
 
 
 

10. Using radiation therapy, cancerous thyroid is treated with radioisotope:

 
 
 
 

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