Page 266 - MODUL SPEKTRUM FIZIK SPM

47. Diagram 22 shows a combination of three logic gates.
Rajah 22 menunjukkan kombinasi tiga get logik.

Diagram 22 / Rajah 22

If the input P = 10 and input Q = 11, what is the output R?
Jika input P = 10 dan input Q = 11, apakah output R?

A. 00 B. 01 C. 10 D. 11

48. Diagram 23 shows a series of radioactive decays for the nucleus of uranium-238 to that radium-226.
Rajah 23 menunjukkan siri pereputan radioaktif nucleus uranium-238 kepada nukleus radium-226.

Diagram 23 / Rajah 23

What is the number of the alpha particles and beta particles emitted during this process?
Berapakah bilangan zarah alfa dan zarah beta yang dihasilkan semasa proses ini?

The number of alpha particles The number of beta particles
Bilangan zarah alfa Bilangan zarah beta
A. 2 3
B. 3 2
C. 4 1
D. 1 1

49. What is the radioisotope that can be used to determine the age of a fossil?
Apakah radioisotope ynag boleh digunakan untuk menentukan usia suatu fosil?

A. Radon–222 B. Uranium–238 C. Carbon–14 D. Iodine-131
Radon-222 Uranium-238 Karbon-14 Iodin-131

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