Timed Challenge - Answer & Submit | GK Mania

1 What is the Stefan-Boltzmann constant?

A) 1.38 × 10⁻²³ J/K

B) 6.67 × 10⁻¹¹ N⋅m²/kg²

C) 5.67 × 10⁻⁸ W/m²K⁴

D) 8.85 × 10⁻¹² F/m

2 What is the chemical symbol for lithium?

A) Lm

B) Li

C) L

D) Lt

3 What subatomic particle has no electric charge?

A) Neutron

B) Electron

C) Proton

D) Positron

4 What instrument measures depth of water?

A) Ammeter

B) Sonar/Echo

C) Thermometer

D) Barometer

5 What is the chemical symbol for nitrogen?

A) Na

B) N

C) No

D) Ni

6 What color is liquid oxygen?

A) Colorless

B) Pale

C) Red

D) Green

7 What is the critical angle for water approximately?

A) 38.0°

B) 42.0°

C) 48.6°

D) 54.0°

8 What type of energy powers a windmill?

A) Wind

B) Chemical

C) Solar

D) Nuclear

9 What phenomenon describes the splitting of spectral lines in a magnetic field?

A) Stark effect

B) Doppler effect

C) Zeeman effect

D) Compton effect

10 What is the approximate age of the Earth?

A) 2.5 billion years

B) 4.5 billion years

C) 1.0 billion years

D) 6.5 billion years

Quiz

1 What is the Stefan-Boltzmann constant?

2 What is the chemical symbol for lithium?

3 What subatomic particle has no electric charge?

4 What instrument measures depth of water?

5 What is the chemical symbol for nitrogen?

6 What color is liquid oxygen?

7 What is the critical angle for water approximately?

8 What type of energy powers a windmill?

9 What phenomenon describes the splitting of spectral lines in a magnetic field?

10 What is the approximate age of the Earth?

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Quiz

1 What is the Stefan-Boltzmann constant?

2 What is the chemical symbol for lithium?

3 What subatomic particle has no electric charge?

4 What instrument measures depth of water?

5 What is the chemical symbol for nitrogen?

6 What color is liquid oxygen?

7 What is the critical angle for water approximately?

8 What type of energy powers a windmill?

9 What phenomenon describes the splitting of spectral lines in a magnetic field?

10 What is the approximate age of the Earth?

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Quiz Results