Question 1

When does a Lunar Eclipse (Chandra Grahan) occur?

Accepted Answer

When Earth comes between Sun and Moon

Question 2

During nuclear fission of U-235 how many neutrons are approximately released per fission event?

Accepted Answer

2 to 3 neutrons (average 2.5)

Question 3

Which instrument is used to measure rainfall amount?

Accepted Answer

Rain gauge

Question 4

Match the following correctly: high speed, wavelength, pressure and energy with their units.

Accepted Answer

High speed-Mach, wavelength-Angstrom, pressure-Pascal, energy-Joule

Question 5

What is the function of a thermostat in a refrigerator?

Accepted Answer

To maintain uniform temperature inside the refrigerator

Question 6

When does a Solar Eclipse (Surya Grahan) occur?

Accepted Answer

When Moon comes between Sun and Earth

Question 7

Which country conducted the first nuclear test and what was it called?

Accepted Answer

USA — Trinity Test 1945

Question 8

Which quantity is measured in coulombs?

Accepted Answer

Charge

Question 9

Joule is the unit of which quantity?

Accepted Answer

Energy

Question 10

Desert cooler increases humidity in a room. True or False — and why?

Accepted Answer

True — desert cooler adds water vapor to air while cooling

Science One Liner Questions with Answers

Joule is the unit of which quantity?