Science MCQs

Practice multiple choice questions with instant feedback. Select an option to see if you're correct.

Total Questions
2100
Page 10 of 210
Question 91 Medium

The hottest stars are the blue stars and their temperature is around _____?

A
25000?C
B
20000?C
C
15000?C
D
10000?C
Question 92 Easy

The Sun has temperature of around _____?

A
3000 ?C
B
6000 ?C
C
4000 ?C
D
5000 ?C
Question 93 Easy

The Sun has temperature of around 6,000 ?C and glows ____?

A
Red
B
Blue
C
Green
D
Orange/Yellow
Question 94 Easy

In which color the coolest stars are appeared?

A
Blue
B
Yellow
C
Red
D
White
Question 95 Medium

The coolest stars are the red stars and their temperature is around ____?

A
2000?C
B
3000?C
C
4000?C
D
5000?C
Question 96 Medium

Our Sun is a star and is the closest star to Earth. The next closer star to Earth is known as ____?

A
Sirius
B
Orion
C
Alpha Centauri
D
Andromeda
Question 97 Medium

Star gets denser and hotter ultimately changing into helium by process of ____?

A
Nuclear fusion
B
Nuclear Fission
C
Radioactive decay
D
Chemical reaction
Question 98 Easy

Stars are huge balls of gas mainly consist of _______ and ________?

A
Oxygen, Nitrogen
B
Helium, Oxygen
C
Hydrogen, Helium
D
Nitrogen, Carbon
Question 99 Easy

The hindrance to the flow of current is called?

A
Conductance
B
Inductance
C
Resistance
D
Capacitance
Question 100 Easy

The circuits in most businesses places and homes are connected in ____?

A
Series
B
Parallel
C
Both A and B
D
None
Showing 91-100 of 2100 questions

Quick Stats

Total Questions 10900
easy 5797
medium 2983
hard 2120

Practice Tips

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Review Mistakes

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Did You Know?

Practice Makes Perfect

Regular practice with MCQs can improve your test-taking speed and accuracy by up to 40%.

Active Recall

MCQs engage active recall, which is 50% more effective for long-term memory than passive reading.