Ann's and Deb's astronomy classes are going on a field trip to see the night sky. Ann's class has 9 telescopes for 21 students. Deb's class has 12 telescopes for 28 students. Which class has the greater ratio of telescopes to students?

What is the resolution of a telescope?Group of answer choicesits ability to distinguish two adjacent objects close together in the skyits ability to see very faint objectsits ability to make distant objects appear much closer to usits ability to focus more than just visible light for imagingits ability to separate light into its component colors for analysis

The ratio of adults to students on a class field trip is 2 to 5. If there are 12 more students than adults, which proportion and solution represent this situation?

5/12 of the pupils in a school are left-handed and the rest are right-handed. There are 276 more pupils who are right-handed than left-handed. What is the total number of pupils in the school?

Which of the following are correct statements about an optical telescope?(e) Two or more convex lenses are used in this telescope.(f) To enter minimum light objective lens is smaller.(g) After entering light rays first refraction and then reflection occurs.(h) Eye piece is smaller than objective lens.(A) e, h(B) e, f (C) f, h(D) f, g, h14. 0.5 kWh = .................... J(A)(B)(C)(D)Space for rough useRao IIT Academy Website : www.raoiit.com4Rao IIT Academy / Pre-Foundation / Homi Bhabha / Official Exam / 2018 / Std. 9th / QP

In a class of 175 students the following data shows the number of students opting one or more subjects. Mathematics 100; Physics 70; Chemistry 40; Mathematics and Physics 30; Mathematics and Chemistry 28; Physics and Chemistry 23; Mathematics, Physics and Chemistry 18. How many students have offered Mathematics alone?  35 48 60 22