Ducklings will follow the first moving object and treat it as their mother. This is an example for
A) Instinct
B) Imprinting
C) Conditioning
D) Reflex
1 Answers
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A 10 kg mass moving at 5 m/s collides head on with a 4 kg mass moving at 2 m/s in the same direction. If e = 1/2, find their velocity after impact.
Given: m1 = 10 kg, m2 = 4 kg u1 = 5 m/s, u2 = 2 m/s, e = \(\frac{1}{2}\) To find: Velocity after impact (v1 and v2) Formulae: i. m1u1 + m2u2 = m1v1 + m2v2 ii. e = \((\frac{v_2-v_1}{u_1-u_2})\) Calculation: From formula (i), 10 × 5...
2 Answers 1 views
Which is not the reason for Assom Movement ? A) Bengali officialdom did not treat them as equals but as second class citizens
C) Electoral competition between the local parties and the rilling Congress Party
2 Answers 1 views
An object .A at 10°C and another object B at 10 K are kept in contact, then heat flows from
Correct option is A) A to B
2 Answers 1 views
When the object is in denser medium’ and the observer is in rarer medium, the object should appear …………………..
A) closer than the original position
2 Answers 1 views
Chickens and ducklings recognise their mother because of a behaviour called
C) Imprinting
2 Answers 1 views
What type of behaviour is responsible for ducklings identifying their mother ?
D) Imprinting
2 Answers 1 views
Ducklings are able to recognise their mother because of
Correct option is B) Imprinting
2 Answers 1 views
Three ducks and two ducklings weigh 32 kg. Four ducks and three ducklings weigh 44 kg. All ducks weigh the same and all ducklings weigh the same
The correct option is (A) 20 kg. Lets weight of Duck = D and weight of duckling = d. 3D + 2d = 32 4D + 3d = 44 multiply first by 3, second by 2 9D...
2 Answers 1 views
Which isotope is very useful to treat goitre ? A) Iodine
Correct option is A) Iodine
2 Answers 1 views
The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object ?
A) Between the pole of the mirror and its principal focus
2 Answers 9 views