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In man the thoracic basket is composed of

In man the thoracic basket is composed of

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(a) Ribs and thoracic vertebrae (b) Ribs and sternum (c) Ribs, sternum and vertebrae (d) Ribs, sternum and thoracic vertebrae

Ribs, sternum […]

Active transport of ions by the cell requires

Active transport of ions by the cell requires

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(a) High temperature (b) ATP (c) Alkaline pH (d) Salts

ATP

Explanation:

Energy is usually provided by ATP or by concentration gradient […]

The area of cross-section of a steel wire (Y=2.0×10¹¹ N/m²) is 0.1 cm².

The area of cross-section of a steel wire (Y=2.0×10¹¹ N/m²) is 0.1 cm². The force required to double its length will be

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(a) 2×10¹² N (b) 2×10¹¹ N (c) 2×10¹⁰ N (d) 2×10⁶ […]

Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².

Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm². Its ends are respectively at 25⁰C and 125⁰C. The coefficient of thermal conductivity of the rod is 0.092 k.cal/m […]

A body takes 5 minute for cooling from 50⁰C to 40⁰C. Its temperature

A body takes 5 minute for cooling from 50⁰C to 40⁰C. Its temperature comes down to 33.33⁰C in next 5 minute. Temperature of surroundings is

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(a) 15⁰C (b) 20⁰C (c) 25⁰C (d) 10⁰C

The ultimate individual unit of magnetism in any magnet is called

The ultimate individual unit of magnetism in any magnet is called

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(a) North pole (b) South pole (c) Dipole (d) Quadropole

Dipole

Explanation:

No explanation available. Be the first to […]

Two lines of force due to a bar magnet

Two lines of force due to a bar magnet

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(a) Intersect at the neutral point (b) Intersect near the poles of the magnet (c) Intersect on equatorial axis of the magnet (d) […]

When ₉₀Th²²⁸ transforms to ₈₃Bi²¹², the number of emitted α and β particles

When ₉₀Th²²⁸ transforms to ₈₃Bi²¹², the number of emitted α and β particles are respectively

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(a) 8 α,7 β (b) 4 α,7 β (c) 4 α,4 β (d) 4 α,1 β

The acceleration due to gravity near the surface of a planet of radius R and density d

The acceleration due to gravity near the surface of a planet of radius R and density d is proportional to

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(a) d/R² (b) dR² (c) dR (d) d/R