Q:

Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?

A) -4.33 diopters	B) 12.33 diopters
C) -12.33 diopters	D) 4.33 diopters

Answer & Explanation Answer: B) 12.33 diopters

Explanation:

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Filed Under: Physics
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2 1393

Q:

If an object travels in a straight line and its velocity increases or decreases by equal amounts in equal intervals of time, then the acceleration of the object is said to be ______________.

A) linear	B) uniform
C) translational	D)

Answer & Explanation Answer: B) uniform

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Q:

If the power of a corrective lens is +2.0 D, then it is a

A) convex lens	B) concave lens
C) convex mirror	D) concave mirror

Answer & Explanation Answer: A) convex lens

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Q:

Which one of the following is n ot an objective of the Pradhan Mantri Krishi Sinchayee Yojana (PMKSY)?

A) To achieve convergence ofinvestment in irrigation at the fieldlevel	B) To expand cultivable area underirrigation
C) To improve on-farm water use efficiency to reduce wastage of water	D) To protect farmers against crop failure due to natural calamities

Answer & Explanation Answer: D) To protect farmers against crop failure due to natural calamities

Explanation:

The major objective of the PMKSY is to achieve

•convergence of investments in irrigation at the field level,

•expand cultivable area under assured irrigation (Har Khet ko pani),

•improve on-farm water use efficiency to reduce wastage of water,

•enhance the adoption of precision-irrigation and other water saving technologies (More crop per drop),

•enhance recharge of aquifers and introduce sustainable water conservation practices by exploring the feasibility of reusing treated municipal based water for peri-urban agriculture and attract greater private investment in precision irrigation system.

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Filed Under: Indian Politics
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Q:

The maintenance functions of living organisms are performed by the _____.

A) chemical processes	B) life processes
C) physical processes	D) No option is correct

Answer & Explanation Answer: B) life processes

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Filed Under: General Science
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Q:

Growing agricultural crops between rows of planted trees is known as

A) Social forestry	B) Jhum
C) Taungya system	D) Agro forestry

Answer & Explanation Answer: C) Taungya system

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Q:

The chemical formula of Sodium Carbonate is

A) Na3CO2	B) Na2CO
C) NaCO3	D) Na2CO3

Answer & Explanation Answer: D) Na2CO3

Explanation:

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Filed Under: Chemistry
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Q:

The main effect of Direct Taxes is on

A) Food prices	B) Consumer goods
C) Capital goods	D) Income

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