- 1830
- 1831
- 1845
- 1860
- B
-
An American Scientist, Joseph Henry invented first electric doorbell.
Everyday Science MCQs
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Which of the following is the smallest particle of an Atom?
- Proton
- Neutron
- Electron
- None of these
- C
Proton is greater then Electron …..times.
- 1830
- 1840
- 1850
- 1860
- b
-
Proton was discovered by Ernest Rutherford in 1900s.
Joseph John Thomas discovered Electron in 1897.
What is unit of Power?
- Newton
- Joul
- Watt
- None of these
- C
-
Unit of Work is Joul.
What is the Richter Scale used to measure?
- Earthquake
- Flood
- Volcano
- Tsunami
- a
-
Richter Scale was invented by “Charlas Francis Richter”.
How many states of matter?
- 2
- 3
- 4
- 5
- b
-
There are three states of matter.
Solid
Liquid
Gas
Burning of smoke in well ventilated room is called:
- Back Draft
- Flashover
- Ventilation
- All of the given
- b
Columb is a unit of:
- Electric Charge
- Work
- Power
- Kg
- A
Milk contains ……..% water.
- 60%
- 67%
- 77%
- 87%
- d
-
Milk consist of 87% water and 13% Solids.
Sun consist of………Hydrogen.
- 70%
- 60%
- 50%
- 45%
- a
-
Helium 28%
Carbon, Nitrogen & Oxygen 1.5%
Other Gases 0.5%