Question 4496:

• NECO 2003

\(^{226}_{88}Ra\) \(\to\) \(^{222}_{866}Rn\) + X + Energy. The equation above represents a nuclear decay of radium isotope. What is X?

A. Alpha particle
B. Beta particle
C. Gamma ray
D. Neutron
E. X – ray

Question 4497:

• NECO 2003

A body that produces its own light is said to be ___________

A. Luminous
B. Non-incandescent
C. Opaque
D. Translucent
E. Transparent

Question 4498:

• NECO 2003

Two equal capacitances are connected first in series and then in parallel. The ratio of the effective series capacitance to the effective parallel capacitance is ___________

A. 0.25
B. 0.50
C. 1.00
D. 2.20
E. 4.00

Question 4499:

• NECO 2003

The resistance of a series R-C circuit is 5 ω If the impedance of the circuit is 13 ω calculate the reactance of the capacitor

A. 12 Ω
B. 14 Ω
C. 16 Ω
D. 18 Ω
E. 65 Ω

Question 4500:

• NECO 2003

The motion of the prongs of a sounding turning fork is ___________

A. Circular
B. Oscillatory
C. Random
D. Rotational
E. Translational