Question
Explain nuclear fission. Why is nuclear fission essential for nuclear fusion?
Explain nuclear fission. Why is nuclear fission essential for nuclear fusion? [2+1]
Resource archive
Archives: Questions
Browse learning resources, explanations and study material.
Latest resources
Open any card to continue learning.
Question
Mention any two advantages of using alternating current over direct current. Why is hydroelectric power generation more environmentally friendly than thermal power generation?
Mention any two advantages of using alternating current over direct current. Why is hydroelectric power generation more environmentally friendly than thermal power…
Question
The cost per B.O.T unit of electrical energy is ₹6. Calculate the total cost of electricity used in a month of 30 days if ten 50 W bulbs are used for 10 hours daily
The cost per B.O.T unit of electrical energy is ₹6. Calculate the total cost of electricity used in a month of 30…
Question
When two conductors are connected in series, the equivalent resistance is 25 Ω, and when connected in parallel, the equivalent resistance is 6 Ω. Determine the resistance of each conductor.
When two conductors are connected in series, the equivalent resistance is 25 Ω, and when connected in parallel, the equivalent resistance is…
Question
Write two causes of short-sightedness or myopia. Which type of lens is used to correct it?
Write two causes of short-sightedness or myopia. Which type of lens is used to correct it? [2+1]
Question
For the same angle of incidence, the angles of refraction in three different media A, B and C are 30°, 45° and 60° respectively. In which medium is the speed of light minimum and why?
For the same angle of incidence, the angles of refraction in three different media A, B and C are 30°, 45° and…
Question
Establish the relationship between radius of curvature (r) and focal length (f) for a convex mirror. Write one use of a concave mirror.
Establish the relationship between radius of curvature (r) and focal length (f) for a convex mirror. Write one use of a concave…
Question
Define the coefficient of apparent expansion and the coefficient of real expansion of a liquid. Write the relationship between them.
Define the coefficient of apparent expansion and the coefficient of real expansion of a liquid. Write the relationship between them. [2+1]
Question
Explain the statement: “The coefficient of linear expansion of iron is 12 × 10⁻⁶ /°C”. Give an example of volume expansion of a liquid due to the application of heat.
Explain the statement: “The coefficient of linear expansion of iron is 12 × 10⁻⁶ /°C”. Give an example of volume expansion of…
Question
Heating 200 g of a metallic carbonate produces 112 g of metallic oxide and a gaseous compound. The vapour density of the gaseous compound is 22. How many moles of the gaseous compound are produced in the reaction?
Heating 200 g of a metallic carbonate produces 112 g of metallic oxide and a gaseous compound. The vapour density of the…