convex lenses are also known as
A. Converging lenses
B. Diverging lenses
C. Deflecting lenses
D. Reflecting lenses
Submitted by :- Muhammad Nawaz
Quantum numbers are __________ ?
A. Arithmetical values
B. Numerical values
C. Leo metric values
D. Logical values
Submitted by :- Jamil Ahmed
Radiations are harmful as it:___________?
A. Causes skin cancer
B. Causes anemia
C. Alters body tissue
D. is unstable
Submitted by :- Mansoor Khan
Soil pollution is caused by:_________?
A. Aerosol
B. Ozone
C. Acid rain
D. PAN
Submitted by :- Mansoor Khan
solar panels contain solar cells which are called
A. Photo-voltaic cell
B. Photo-electric cell
C. Photo-nuclear Cell
D. Photo-protic Cell
Submitted by :- Muhammad Nawaz
What are the metal bearing rocks called?
A. Bitumen
B. Bauxite
C. Metalloids
D. Ores
Submitted by :- Saqib Ali
One fathom is equal to:__________?
A. 6 feet
B. 6 meters
C. 6 feet
D. 1 cm
Submitted by :- Mansoor Khan
who used telescope for the first time in human history
A. Galileo-Galilei
B. Aristotle
C. Al-beruni
D. Thomas Harriot
Submitted by :- Muhammad Nawaz
Reading of a Barometer going down is an indication of:___________?
A. Snow
B. Storm
C. Intense heat
D. Rainfall
Submitted by :- Mansoor Khan
Actinides are the elements with atomic number from:
A. 97 to 14
B. 11 to 115
C. 89 to 103
D. 36 to 43
Submitted by :- Mansoor Khan