Options:
- A. Ordinary water
- B. Heavy water
- C. Lead
- D. Aluminum
View Answer
C. Lead
Physics
The maximum safe limit dose for persons working in a nuclear power station is ________________?
Options:
- A. 1 rem per week
- B. 5 rem per week
- C. 4 rem per week
- D. 3 rem per week
View Answer
B. 5 rem per week
Radiations are used for the treatment of skin of a patient is_______________?
Options:
- A. Alpha rays
- B. Gamma rays
- C. Beta rays
- D. X-rays
View Answer
B. Gamma rays
Which branch of science plays an important role in the development of technology and engineering ?
Options:
- A. Chemistry
- B. Physics
- C. Geology
- D. Biology
View Answer
B. Physics
Which one is not a branch of physical sciences ?
Options:
- A. Chemistry
- B. Astronomy
- C. Geology
- D. Biology
View Answer
D. Biology
The number of categories in which physical quantities are divided is_____________?
Options:
- A. 1
- B. 2
- C. 3
- D. 4
View Answer
B. 2
How many types of units are in SI ?
Options:
- A. 1
- B. 2
- C. 3
- D. 4
View Answer
C. 3
In scientific notation, numbers are expressed in________________?
Options:
- A. Power of ten
- B. Powers of two
- C. Reciprocal
- D. Decimal
View Answer
A. Power of ten
X-rays are electromagnetic waves like________________?
Options:
- A. Light waves
- B. Heat waves
- C. Microwaves
- D. ?-rays
View Answer
D. ?-rays
1024 can be written in scientific notation as______________?
Options:
- A. 1.024
- B. 2 Raised to power 10
- C. 0.000976
- D. 1/0.00097
View Answer
A. 1.024