Author: Anonymous

A glass is half full of water (n=1.33), with a layer of vegetable oil (n=1.47) floating on top. A ray of light travelling downward through the oil is incident on the water at an angle of 71.4o. What happens with the ray of light? 

Sarcopenia:

Paul needed 3,200 kcal at age 40. Now that he is age 70 (and his height, weight, and PA factor are the same) how many kcal is he likely to need? 

GLP-1 agonists mimic natural GLP-1 and do all of the following EXCEPT: 

In the figure, material 1 is glass (n1=1.55)  and material 2 is vegetable oil. What is the refractive index of vegetable oil, if 

A rectangular coil of 100 turns and the dimensions 10 cm by 30 cm is placed in a uniform magnetic field of 0.8 T. The coil rotates such that its orientation with the field changes from 30 degrees to 60 degrees in 0.1 second. What is the magnitude of induced emf in the coil?

Which of the following is characteristic of bone in climateric changes?

A 400-turn solenoid carries a current of 9.0 A. The length of the solenoid is 14 cm. What is the magnetic field inside the solenoid?

A concave mirror of a radius of curvature 40 cm produces an inverted image 1/3rd of the size of an object. Where is the image located from the mirror?    

A concave lens of focal length of 20 cm forms the image of a pencil at a distance of 12 cm from the lens. Where is the pencil located from the lens ( or what is the object distance)?