NECO Physics Past Questions & Answers - Page 28

136.

A projectile fired with initial velocity, u will attain its maximum height H when the angle of projection θ is

A.

30°

B.

450°

C.

60°

D.

75°

E.

90°

Correct answer is E

No explanation has been provided for this answer.

137.

Which to the following is NOT a fundamental unit?

A.

Ampere

B.

Kelvin

C.

Kilogramme

D.

Newton

E.

Second

Correct answer is D

No explanation has been provided for this answer.

138.

An electron makes a transition from - 1.60 eV energy level to - 10.4eV energy level Calculate the energy loss due to the transition.

A.

16.64eV

B.

12.00eV

C.

10.40eV

D.

8.80eV

E.

6.50eV

Correct answer is D

No explanation has been provided for this answer.

139.

When very hot water is poured into a thin-walled glass container, it is less likely to break because

A.

all parts of the container got heated-uniformly

B.

glass can withstand a very high temperature

C.

the molecules of glass are too far apart to cause breakages of the container

D.

the outer part of the container is cooler than the inner part

E.

thin glass does not expand fast

Correct answer is A

No explanation has been provided for this answer.

140.

The frequency of a body executing simple harmonic motion when left undisturbed is known as__________ frequency.

A.

damped

B.

forced

C.

free

D.

natural

E.

sinusoidal

Correct answer is D

No explanation has been provided for this answer.