When the plate area of a capacitor increases?

3 years ago

A. the voltage can withstand increase B. the capacitance decreases C. the capacitance is unaffected D. the capacitance increases Correct…

A person standing waist-deep in a swimming pool appears to have short legs because of light?

3 years ago

A. diffraction B. refraction C. reflection D. interference Correct Answer: Option B - refraction Explanation The refractive index of water…

A tuning fork having a frequency of 312 Hz emits a wave which has a wavelength of 1.10 m. Calculate the velocity of sound

3 years ago

A. 312.0 ms−1 B. 110.0 ms−1 C. 343.2 ms−1 D. 686.4 ms−1 Correct Answer: Option C = 343.2 ms−1 Explanation…

The secondary pigments consist of?

3 years ago

A. blue, green, and violet B. yellow, green, and magenta C. magenta, yellow, and cyan D. red, green, and blue…

An isotope has an initial activity of 120 Bq. 6 days later its activity is 15 Bq. The half-life is?

3 years ago

A. 3 days B. 2 days C. 1 day D. 4 days Correct Answer: Option A = 3 days

Which of the following liquid is a poor conductor of electricity?

3 years ago

A. molten mercury B. molten steel C. molten iron D. molten copper JAMB CBT Software 2023 - Free Download Correct…

Molecules move in random motion within a liquid. The total internal energy of the liquid depends on all of the following except its?

3 years ago

A. temperature B. mass C. specific heat capacity D. melting point Correct Answer: Option D - melting point Explanation Internal…

A cell whose internal resistance is 0.55Ω delivers a current of 4 A to an external resistor. The lost voltage of the cell is?

3 years ago

A. 4.00 V B. 2.20 V C. 0.15 V D. 8.00 V Correct Answer: Option B = 2.20 V Explanation…

The relationship between the coefficient of linear expansion α and volumetric expansion (γ) is?

3 years ago

A. γ = α−3 B. γ = α C. 3α D. γ = α3 Correct Answer: Option C = 3α…

Tyres are treaded to?

3 years ago

A. increase weight of tyres B. increase friction C. increase its longevity D. look good Correct Answer: Option B -…