Name the following: The location of an iron and steel industry set up with German collaboration.

For the electro-refining of copper:

1. What is the cathode made up of?
2. Write the reaction that takes place at the anode.

State an important industrial use of Coal

With reference to the rise of National Consciousness in India, Explain any three contributions of Raja Rammohan Roy

The sum of the first three terms of an Arithmetic Progression (A.P.) is 42 and the product of the first and third term is 52. Find the first term and the common difference.

Under what condition can a non-member of Parliament be made a Minister?

The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow:

1. Name the factor studied in this experiment.
2. What will you observe in
...

Write a relationship between angle of incidence and angle of refraction for a given pair of media.

(i) Define resonant vibrations.

(ii) Which characteristic of sound, makes it possible to recognize a person by his voice without seeing him?

State any one federal feature of the Indian Constitution.

Action of concentrated sulphuric acid on carbon

A pendulum has a frequency of 4 vibrations per second. An observer starts the pendulum and fires a gun simultaneously. He hears the echo from the cliff after 6 vibrations of the pendulum. If the...

Mention any two economic factors responsible for the growth of nationalism in India.

Blood in the pulmonary artery or pulmonary vein (Which one contains less oxyhaemoglobin?)

In the given figure, ABCDE is a pentagon inscribed in a circle such that AC is a diameter and side BC//AE. If ∠BAC = 50°, find giving reasons:

1. ∠ACB
2. ∠EDC
3. ∠BEC

Hence prove that BE is also a diameter

State any two provisions of the Indian Independence Act of 1947 that was to decide the fate of the Princely States?