Which of the following correctly describes Speed of Light?
Difficulty: Medium
About this MCQ
This Medium General Science and Nature question asks: Which of the following correctly describes Speed of Light? The correct choice is B. A fundamental physical constant, approximately 299,792 kilometers per second in a vacuum. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
General Science and Nature items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in General Science and Nature so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next General Science and Nature item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. The fourth planet from the Sun, known as the 'Red Planet' due to iron oxide on its surface
Why not A: “The fourth planet from the Sun, known as the 'Red Planet' due to iron oxide on its surface” does not fit this question. The answer is A fundamental physical constant, approximately 299,792 kilometers per second in a vacuum.
- B. A fundamental physical constant, approximately 299,792 kilometers per second in a vacuum ✓
- C. Cold-blooded vertebrates such as snakes, lizards, and turtles that are typically covered in scales
Why not C: “Cold-blooded vertebrates such as snakes, lizards, and turtles that are typically covered in scales” does not fit this question. The answer is A fundamental physical constant, approximately 299,792 kilometers per second in a vacuum.
- D. The smallest planet in the solar system and the closest planet to the Sun
Why not D: “The smallest planet in the solar system and the closest planet to the Sun” does not fit this question. The answer is A fundamental physical constant, approximately 299,792 kilometers per second in a vacuum.
Correct answer
B. A fundamental physical constant, approximately 299,792 kilometers per second in a vacuum
Explanation
A fundamental physical constant approximately kilometers per second in a vacuum is the term that matches Which of the following correctly describes Speed of Light option B Option A The fourth planet from the Sun known as the 'Red Planet' due to iron oxide on its surface does not fit this question Option C Cold-blooded vertebrates such as snakes lizards and turtles that are typically covered in scales does not fit this question Option D The smallest planet in the solar system and the closest planet to the Sun does not fit this question For this General Science and Nature question the accepted answer is A fundamental physical constant approximately.
Source: General Knowledge Official Reference Guide
Tags: FPSC, PPSC, General Knowledge, NTS, General Science and Nature
Submitted by: MCQsHub Editorial
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