Timed Challenge - Answer & Submit | GK Mania

1 What subfield of physics studies heat and energy?

A) Optics

B) Thermodynamics

C) Mechanics

D) Acoustics

2 What is the radius of curvature formula?

A) y'/y''

B) R = (1+(dy/dx)²)^(3/2) / |d²y/dx²|

C) (1+y'²)/y''

D) 1/y''

3 What is sin2θ in terms of sinθ and cosθ?

A) 2sin²θ

B) 2sinθcosθ

C) cos²θ − sin²θ

D) sin²θ + cos²θ

4 What is arctan(1)?

A) 45°

B) 0°

C) 30°

D) 90°

5 What is the moment of inertia of a solid sphere about its diameter?

A) MR²

B) (1/2)MR²

C) (2/5)MR²

D) (2/3)MR²

6 In a p-n junction, what is the depletion region?

A) Region depleted of mobile charge carriers

B) Region of zero resistance

C) Region of maximum voltage

D) Region of maximum current

7 What is the Jacobian used for?

A) Single variable calculus

B) Linear algebra only

C) Probability

D) Change of variables in multiple integrals

8 What is the standard form of an ellipse?

A) y² = 4ax

B) x + y = r

C) x²/a² − y²/b² = 1

D) x²/a² + y²/b² = 1

9 What is the condition for the line y = mx + c to be tangent to the ellipse?

A) c² = a²m² + b²

B) c = am + b

C) c = a²m²

D) c² = a² + b²m²

10 What is the Van der Waals equation for real gases?

A) PV² = nRT

B) (P + a/V²)(V − b) = nRT

C) P = nRT/V

D) PV = nRT

Quiz

1 What subfield of physics studies heat and energy?

2 What is the radius of curvature formula?

3 What is sin2θ in terms of sinθ and cosθ?

4 What is arctan(1)?

5 What is the moment of inertia of a solid sphere about its diameter?

6 In a p-n junction, what is the depletion region?

7 What is the Jacobian used for?

8 What is the standard form of an ellipse?

9 What is the condition for the line y = mx + c to be tangent to the ellipse?

10 What is the Van der Waals equation for real gases?

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Quiz

1 What subfield of physics studies heat and energy?

2 What is the radius of curvature formula?

3 What is sin2θ in terms of sinθ and cosθ?

4 What is arctan(1)?

5 What is the moment of inertia of a solid sphere about its diameter?

6 In a p-n junction, what is the depletion region?

7 What is the Jacobian used for?

8 What is the standard form of an ellipse?

9 What is the condition for the line y = mx + c to be tangent to the ellipse?

10 What is the Van der Waals equation for real gases?

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Quiz Results