Topics

General Knowledge
General Science
General English
Aptitude
General Computer Science
General Intellingence and Reasoning
Current Affairs
Exams
Elementary Mathematics
English Literature

The least penetrating power ray is

A) a-Ray
B) B-Ray
C) Y-Ray
D) X- Ray

Correct Answer:

A) a-Ray

Description for Correct answer:
Alpha particles are the least penetrating as they are the most densely ionizing. They are absorbed by 10 cm of air, 0.01 mm lead or a sheet of paper.

Part of solved SSC Practice test(2) questions and answers : Exams >> SSC Exams >> SSC Practice test(2)

Comments

Similar Questions

1). Hydrogen peroxide is an effective sterilizing agent. Which one of the following product results when it readily loses active oxygen?

A). Water

B). Oxygen

C). Ozone

D). Nasant Hydrogen

2). The maximum fixation of solar energy is done by

A). Bacteria

B). Fungi

C). Green plants

D). Protozoa

3). The term 'brown air' is used for

A). Photochemical smog

B). Sulfurous smog

C). Industrial smog

D). Acid fumes

4). Which of the following in FALSE with respect to rain water harvesting?

A). it helps raising water table

B). it helps meet rising water demand

C). it increases run-off losses

D). it is a device of water conservation

5). Peroxyacetyl nitrate is a

A). Plant hormone

B). Vitamin

C). Secondary pollutant

D). Acidic dye

6). Which of the following river does not originate in Indian territory?

A). Mahanadi

B). Brahmaputra and Sutlej

C). Periyar

D). Ganga

7). To whom the line 'A thing of beauty is a joy for ever is attributed?

A). John Keats

B). Dr. Charles Dickens

C). Dr. Jonathan Swift

D). William Wordsworth

8). The birthday of which of the following leaders is celebrated as 'Teachers Day' In India?

A). Dr. Rajendra Prasad

B). S. Radhakrishnan

C). C. Rajagopalachari

D). Lala Lajpat Rai

9). The award given for outstanding performance in sports is

A). Bharat Ratna

B). Padma Shri Award

C). Arjuna Award

D). Dronarcharya Award

10). Which hill station's name means 'Place of the thunderbolt?

A). Shilong

B). Oottacamand

C). Darjeeling

D). Gangtok