Question

1. When light travels from a rarer to a denser medium, its speed
2.colour of white light is deviated the most
3. colour of light has a higher critical angle.
4. A convex is placed in water. It's focal length will
5. On reducing the focal length of a lens it's power
6. The approximate vavelength for blue light is
7. The most energetic electromagnetic radiations are
8. The word SONAR stands for
9. Resonance is a special case of vibrations
10. The S.l. unit of current is​

Answer 1

Answer:

1 it's speed got fast

2 because white is very light color

3 ----

Answer 2

According to Snell's Law:

n

1

n

2

=

v

2

v

1

Denser medium will have refractive index n

2

greater than refractive index n

1

of rarer medium. Thus, according to the law, speed will decrease while travelling from rarer medium to denser i.e. v

2

will be lesser than v

1