MEDIUM
10th ICSE
IMPORTANT
Earn 100

What is a colour triangle? Explain.

Important Questions on Spectrum and Colours

MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 11
Why is a pinch of blue indigo is mixed in water to clean white clothes?
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 12
What are colour filters? Write any two uses of these filters.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 13
Arrange the following colours in increasing order of their wavelengths: Blue, red, orange and yellow.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 14
Three light sources of red, blue and green colours when projected together produce no light effect on a white screen. Now red light source is switched off. What colour will appear on the screen? Explain.
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 15
Why does the colour of a particular flower appear yellow but that of leaves appear to be green?
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 16
When a yellow flower with green leaf is taken into a dark room and is exposed to green light, what would be the colour of flower and leaf in a dark room?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 17

Fill in the following blank according to the relation.

Green + Magenta = _____.

EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 17

Fill in the following blank according to the relation.

Red + _____ = Yellow.