LUWI 6.
The height h of a water manometer
is 20 cm when used to measure the
a .
of a manometer whose liquid is
glycerine of density 1.26 g/cm (Take
g= 10 Nkg )
of a gas​

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?