General science
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About this topic in RPF SI
- In the exam pattern: Computer Based Test (CBT), General Awareness: 50 questions, 50 marks (RRB notice, 15 Apr 2024).
Signed-in students aged 13 and above can share their own notes on General science here; a moderator reads each one first.
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इस विषय का अभ्यास
पूरा मॉक दीजिए →Q1 · General science · MEDIUM
Which of the following statements about the pH scale is incorrect?
Q2 · General science · EASY
In the human respiratory system, the actual site of gas exchange between the blood and inhaled air occurs in the:
Q3 · General science · HARD
A convex lens of focal length 20 cm is used to form a real image of an object placed at a distance of 30 cm from the lens. What is the magnification produced by the lens?
Q4 · General science · MEDIUM
What is the chemical formula of Plaster of Paris?
Q5 · General science · MEDIUM
A sound wave with a frequency of 500 Hz travels through air at a speed of 340 m/s. What is the wavelength of this sound wave?