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Ball A, with a mass of 0.20 kg, strikes ball B, with a mass of 0.30 kg. The initial velocity of ball A is 0.95 m/s. Ball B is initially at rest. What are the final speed an
does lights of different wavelengths help us to see different colour
A bar magnet is overhanging vertically above a closed coil of wire. The bar magnet is unconfined. It remainder vertical as it come near the coil falls straight through the coil and
For silicon the forbidden gap is (A) 1.1ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For silicon the forbidden gap is 1.1ev.
An ore sample weighs 17.50 N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 11.20 N. Find the total volume and the d
The radioisotope 222 84 Po undergoes alpha decay to form an isotope of lead (lead has atomic number 82). Verify what the mass number of that isotope must be by writing a nuc
IN PHYSICS B OCR THE POTENTIAL DIVIDER AND CALCULATION ON LENS ARE TRICKY. HOW DO I APPROACH AND UNDERSTAND QUESTIONS?
What are other manufactured wavelengths in Helium-Neon Laser? Then what remembers while there is mention of a He-Ne laser is a red beam, those along with other wavelengths are
The physical value which does not depend on any other physical quantity is known as a fundamental physical quantity like length; mass and time are known as fundamental units.
An aquarium for larger water animals A glass aquarium 50 cm by 25 cm is of useful size. Old accumulator cells are suitable, but the glass is not very obvious. To prepare l
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