A point object is placed midway between two concave mirrors
(facing each other). Each of the mirrors has a focal length
of 10 cm. what must be the distance between the mirrors for
which only one image is seen?
1 10cm
2 20cm
3 40cm
4 20cm or 40cm
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. Consider the two statements given below, one labeled as Assertion (A) and the other labeled as Reason (R): Assertion (A) : A Mixture of salt and ice gives temperature below 00 C Reason (R) : The salt raises the freezing point of ice. In the context of the above two statements, which one of the following is correct? (a) Both A and R are true and R is the correct explanation of A (b) Both A and R are true but R is not the correct explanation of A (c) A is true but R is false (d) A is false but R is true
Which instrument is played by Bismillah Khan? (a) Flute (b) Tabla (c) Shehnai (d) Sarod (e) Sarangi
Who is called the ?Father of Geometry?? (a) Bertrand Russel (b) Aristotle (c) Euclid (d) Archimedes
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The Indian National Congress and the nationalists of Bengal firmly opposed the partition of Bengal because: (a) it was a challenge to Indian nationalism (b) it was an administrative measure (c) it created a separate nation (d) it would have made British rule popular
The first definite step to provide Parliamentary control over East India Company was taken by (a) The Regulating Act (b) The Pitts India Act (c) The Charter Act of 1793 (d) The Charter Act of 1813
On a cold morning, a metal surface will feel colder to touch than a wooden surface because : (A) a metal has high specific heat (B) a metal has high thermal conductivity (C) a metal has low specific heat (D) a metal has low thermal conductivity
Why do diamonds shine at night? (A) Diamonds are radioactive and so, there are radiations (B) On account of high refractive index, the rays of light get internally reflected (C) Diamonds shine because they have some amount of radium in them
The first act which altered the Constitution of East India Company at home changed the structure of the Company in India. (1) The Regulating Act of 1773 (2) The Pitt India Act of 1874 (3) The Charter Act of 1823 (4) The Government of India Act of 1858
A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes are equal. What is the total number of notes? (a) 60 (b) 90 (c) 75 (d) 45
Chand Sultana, the brave queen of ??? was killed in an engagement with the Moghul army. (a) Golkunda (b) Bijapur (c) Khandesh (d) Ahmednagar
The final power to reprieve or remit a punishment and/or to commute death sentence rests with the: (a) Chief Justice of the Supreme Court of India (b) President of India (c) Prime Minister (d) Attorney-General
The system of ancient Indian society in which man?s life was divided into four periods is known as the: (a) caste system (b) patriarchal system (c) ashrama system (d) matriarchal system