In man the thoracic basket is composed of
Options
(a) Ribs and thoracic vertebrae (b) Ribs and sternum (c) Ribs, sternum and vertebrae (d) Ribs, sternum and thoracic vertebrae
Correct Answer:
Ribs, sternum […]
Active transport of ions by the cell requires
Options
(a) High temperature (b) ATP (c) Alkaline pH (d) Salts
Correct Answer:
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 force required to double its length will be
Options
(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. 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 comes down to 33.33⁰C in next 5 minute. Temperature of surroundings is
Options
(a) 15⁰C (b) 20⁰C (c) 25⁰C (d) 10⁰C
The ultimate individual unit of magnetism in any magnet is called
Options
(a) North pole (b) South pole (c) Dipole (d) Quadropole
Correct Answer:
Dipole
Explanation:
No explanation available. Be the first to […]
Two lines of force due to a bar magnet
Options
(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 are respectively
Options
(a) 8 α,7 β (b) 4 α,7 β (c) 4 α,4 β (d) 4 α,1 β
Correct Answer: […]
The acceleration due to gravity near the surface of a planet of radius R and density d is proportional to
Options
(a) d/R² (b) dR² (c) dR (d) d/R
Correct Answer:
dR
Explanation: […]
A car sounding a horn of frequency 100 Hz passes an observer. The ratio of frequencies of the horn noted by the observer, before and after passing of car is 11:9. if the speed of […]
2017 Copyright Doctor Dreams Training Academy