Question
A metal sphere is heated. Which property remains
unchanged?Solution
When heated, a metal sphere expands, so volume and surface area increase, while density decreases. However, mass remains unchanged because no material is lost.
What is the main cause of the 'Itai-Itai' disease?
Glycol is used to manufacture which of the following?
A series LCR circuit has a resistor of 100 Ξ©. At resonance, the voltage across the resistor is 50 V and across the inductor is 30 V. If the angular re...
The kidneys in human beings are a part of the system for
What type of immunity is provided by vaccination?
Bakelite is a polymer which is used in the manufacturing of buckets and electrical switches. What are the monomers of bakelite?
Which blood group is the universal recipient?
What is the formula for calculating speed?
What is the main chemical used in the production of matchsticks?
The base of the modern periodic table is
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