9th Standard Syllabus & Materials
9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கற்கண்டு (இலக்கணம்) - தொடர் இலக்கணம், ஆகுபெயர் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -விரிவானம் (துணைப்பாடம்) - தாய்மைக்கு வறட்சி இல்லை! Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கவிதை பேழை (செய்யுள்) - மார்கழி பெருவிழா Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர்-இலக்கணம் - பகுபத உறுப்பிலக்கணம் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர் - இலக்கணம்-எழுத்து -அளபெடை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர்-துணைப்பாடம் - ஆறாம்திணை Important Questions And Answers Study Material - QB365 Set A
Published on: 09/12/2020
9th Standard Science Light English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021
Download Tamil Nadu 9th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
The second law of refraction is stated by ____________________
C.V. Raman
Gallileo
Newton
Snell
2.
The mirror used by a dental surgeon is _______________________
plane
convex
concave and convex
concave
3.
According of _______________________ of light, angle of incidence is equal to angle of reflection
refraction
dispersion
reflection
total internal reflection
4.
To form a real image -________________mirror is required.
parallel
plane
convex
concave
5.
The radius of curvature of the spherical mirror is equal to __________.
focal length
twice the focal length
thrice the focal length
half of the focal length
6.
The centre of the reflecting surface of a spherical mirror is _____________________
centre of curvafure
focus
pole
radius of curvature
7.
The mirror that diverge the light rays is______________________
concave
convex
plane
None of these
8.
Mirrors having spherical surface of reflection are __________________
plane mirror
lenses
spherical mirrors
prism
9.
Which of the following statements about total internal reflection is true?
angle of incidence should be greater than critical angle
light must travel from a medium of higher refractive index to a medium of lower refractive index
both (a) and (b)
10.
The speed of light is maximum in
vacuum
glass
diamond
graphite
1.
(d)
Snell
2.
(d)
concave
3.
(c)
reflection
4.
(d)
concave
5.
(b)
twice the focal length
6.
(c)
pole
7.
(b)
convex
8.
(c)
spherical mirrors
9.
(c)
both (a) and (b)
10.
(a)
vacuum
9th Standard Syllabus & Materials
9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - மணிமேகலை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - ஏறு தழுவுதல் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர் - தண்ணீர் Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 9th Standard Subjects
Tamilnadu Stateboard Standards
