The number of protons in an atom is known as the atomic number
1.) C
2.) B
3.) D
4.) B
Good luck with your work!
C......................................
Answer
given,
diameter of sphere = 5 cm
radius of sphere = -2.5 cm
refractive index for glass n₁ = 1.5
refractive index for air n₂ = 1
magnification of the glass = ?
now,



S' = - 10 cm
magnification


m = + 3
Answer:
B) The wavelength of both transverse and longitudinal waves is measured parallel to the direction of the travel of the wave