Timed Challenge - Answer & Submit | GK Mania

1 What is the angle between the planes 2x+y−z=1 and x+y+z=2?

A) 45°

B) 90°

C) 0°

D) cos⁻¹(2/(√6·√3))

2 What is the coefficient of restitution for a perfectly elastic collision?

A) 1

B) 0

C) 0.5

D) ∞

3 What is the slope of a line perpendicular to slope m?

A) −1/m

B) 1/m

C) −m

D) m

4 What is the second law of thermodynamics in terms of entropy?

A) ΔS < 0

B) ΔS(system) ≥ 0

C) ΔS = 0 always

D) ΔS(universe) ≥ 0

5 What is the equation of tangent to circle x²+y²=25 at (3,4)?

A) 4x + 3y = 25

B) 3x − 4y = 25

C) y = 3x/4

D) 3x + 4y = 25

6 What is lim(x→0) (eˣ−1)/x?

A) ∞

B) e

C) 0

D) 1

7 What phenomenon explains why sky appears blue?

A) Diffraction

B) Reflection

C) Rayleigh scattering

D) Refraction

8 What is the Lindlar's catalyst composition?

A) Pd/C

B) Pd/BaSO₄ partially poisoned with quinoline

C) Pt/C

D) Ni/Al₂O₃

9 What type of reaction combines elements?

A) Displacement

B) Combustion

C) Synthesis

D) Decomposition

10 What is the formula for the area of a circle?

A) 2πr

B) πr²

C) πr

D) πd

Quiz

1 What is the angle between the planes 2x+y−z=1 and x+y+z=2?

2 What is the coefficient of restitution for a perfectly elastic collision?

3 What is the slope of a line perpendicular to slope m?

4 What is the second law of thermodynamics in terms of entropy?

5 What is the equation of tangent to circle x²+y²=25 at (3,4)?

6 What is lim(x→0) (eˣ−1)/x?

7 What phenomenon explains why sky appears blue?

8 What is the Lindlar's catalyst composition?

9 What type of reaction combines elements?

10 What is the formula for the area of a circle?

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Quiz

1 What is the angle between the planes 2x+y−z=1 and x+y+z=2?

2 What is the coefficient of restitution for a perfectly elastic collision?

3 What is the slope of a line perpendicular to slope m?

4 What is the second law of thermodynamics in terms of entropy?

5 What is the equation of tangent to circle x²+y²=25 at (3,4)?

6 What is lim(x→0) (eˣ−1)/x?

7 What phenomenon explains why sky appears blue?

8 What is the Lindlar's catalyst composition?

9 What type of reaction combines elements?

10 What is the formula for the area of a circle?

Navigator

Quiz Results