Speed of sound through water is
An electric generator converts:
Electrical energy in mechanical energy
Both a and d
Neither a and d
Mechanical energy into electrical energy
Mechanical energy into electrical energy
Isotopes of an element have:
Same physical and chemical properties
Different physical and chemical properties
Same physical properties but different chemical properties
Different physical properties but same chemical properties
Different physical properties but same chemical properties
Which metal has been transferred into plutonium?
In Pacific Ocean depth of Mariana Trench la;
10,100 meter
10,400 meter
11,300 meter (
11,500 meters
The Earth revolving around the Sun at the speed:
1,08,000 km per hour
1,50,000 km per hour
1, 68,000 km per hour
1, 93,000 km per hour
Which one is the liquid non-metal of the following?
The element which has the greatest quantity In Earth's crust:
A constituent of fuel used in a spaceship is:
The gas liberated by plants during daylight is;
Sulphur dioxide(
Hydrogen
Height of Mount averest is
Which physical state of water do the clouds represent?
If driving wheel is larger and driven wheel is smaller, then speed of small wheel:
What is used in a better way to split timber?
The instrument used to measure air pressure in the tyre of a car is:
Simple barometer
Aneroid barometer
Which one is different in nature?
Which non-metal shown metallic lustre?
Which one is 300 times larger than the Earth?
How does heat pass through vacuum?
By conduction
By convection
Why is the water heating coil placed near bottom of kettle?
Water is a good conductor
Hot water rises up
From which surface does the heat radiate quickly?
From black surface
rom red surface
Sun heats the doorknob, which method of heat transfer contributes to heat the inside doorknob?
By conduction
By convection
The image formed by a convex mirror la always:
The ray of light passing through the C of concave mirror:
Retraces Its path
Absorbed in the mirror
Becomes parallel to the principal axis Ans
Which one is a metalloid?
