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PhysicsElectric Charges and Fields•Multiple Choice (MCQ)
easy1 Mark

What is the SI unit of electric dipole moment?

A.Coulomb-metre (C·m)
B.Coulomb per metre (C/m)
C.Volt-metre (V·m)
D.Newton per Coulomb (N/C)
Used in 6 papers
PhysicsElectrostatic Potential and Capacitance•Short Answer (SA)
moderate2 Marks

Derive the expression for the energy stored in a parallel plate capacitor of capacitance C charged to potential V.

Used in 4 papers
ChemistrySolutions•Numerical Problem
hard3 Marks

Calculate the boiling point elevation for a solution containing 18.0 g of glucose in 250 g of water (Kb for water = 0.52 K kg/mol).

Used in 5 papers
ChemistryChemical Kinetics•Multiple Choice (MCQ)
moderate1 Mark

For a first-order reaction, the half-life period t1/2 is independent of:

A.Initial concentration of reactant
B.Temperature
C.Rate constant
D.Activation energy
Used in 8 papers
MathematicsCalculus & Integration•Short Answer (SA)
hard3 Marks

Evaluate the integral \int_0^{\pi/2} \frac{\sin x}{\sin x + \cos x} dx using definite integral properties.

Used in 3 papers
BiologyGenetics and Evolution•Multiple Choice (MCQ)
easy1 Mark

What is the expected phenotypic ratio in the F2 generation of a classic Mendelian monohybrid cross?

A.3 : 1
B.9 : 3 : 3 : 1
C.1 : 2 : 1
D.2 : 1
Used in 12 papers