Board Of Intermediate Education (BIE)
Inter – Second Year
Subject Wise Courses For Inter – 2 Year
Maths Inter 2A
Maths Inter 2B
Zoology Inter -2
Botany Inter -2
Physics Inter -2
Chemistry Inter -2
Recommended Question & Answers for Inter – 2 Year
1. Find the value, if it exists. If not, give the reason for non-existence ?
(ii) tan−1(sin(−5π2))
(iii) sin-1[sin 5]
Answer:
(i) sin-1(cos π) = sin-1(-1) = −π2
(ii) tan−1(sin5π2)=tan−1(−sinπ2)=tan−1(−1)=−π4
(iii) sin-1(sin 5) = sin-1[sin (5 – 2π)] = 5 – 2π
2. This hormone promotes rooting in artificial method of cutting ………………..
(b) Auxin
(c) Cytokinin
(d) Dormin
Answer:
(b) Auxin
3. State the drawbacks of Newton’s corpuscular theory of light?
Drawbacks of Newton’s corpuscular theory of light:
1. The theory predicted that the speed of light in a
denser medium should be greater than that in air. This was disproved when experiment showed that the speed of light in water is less than that in air (carried out in 1850 by French physicist Jean Bernard Leon Foucault). ,
2. The theory could not satisfactorily explain the phenomenon of polarization and the simultaneous of reflection and refraction.
3. The corpuscular theory failed to explain the phenomena of diffraction and interference.
4. There was no basis for the hypothesis that the constituent colors of white light are due to different sized corpuscles.