You are browsing the best resource for TNPSC Group 1 Exam.

for the Aspirants who are preparing for Group 2,2A, Group 4,VAO kindly refer your Syllabus and Prepare with our site.


Spectroscopy


13. 

Electromagnetic radiations are given our due to

Answer : D. None of these

Justify your answer :  
Name:  
Email ID:  
 

14. 

Polarids are used in

Answer : B. photo-elasticity

Justify your answer :  
Name:  
Email ID:  
 

15. 

Consider the statements:
X -rays
I. are not electromagnetic radiations
II. Are electromagnetic radiations
III. Have longer wave lengths
IV. Have shorter wave lengths of these points

Answer : C. II and IV are correct

Justify your answer :  
Name:  
Email ID:  
 

16. 

Consider the following statements: Radioactive substances emit
I. Alpha rays
II. Beta rays
III. X-rays rays
IV. Gamma rays

Answer : C. I,II and IV are correct

Justify your answer :  
Name:  
Email ID:  
 

17. 

X-rays cannot penetrate through

Answer : C. lead

Justify your answer :  
Name:  
Email ID:  
 

18. 

The transverse wave nature of light was proved by

Answer : C. Polarisation

Justify your answer :  
Name:  
Email ID:  
 


TOP