A student has to create a model of a convex lens. Which property of a convex lens should the student include in the model?
A
The lens spreads light.

B
The lens focuses light.

C
The lens destroys light.

D
The lens reflects light.

A.  The lens spreads light.

Explanation:

The convex lens will converge the light that passes through it. The direction of light will be bend to be closer to the middle point. This is the lens used for the eyeglass that treat people with hypermetropia. That is why the convex lens also called a converging lens or a plus lens. The strength of the convex lens depends on its focal length, index of the material used, and the radius of curvature.

1. Falso.

2. Cierto.

3. Falso.

4. Cierto.

5. Falso.

6. Cierto.

Explanation:

In this exercise you have to read each sentence and you have to indicate if it is true or false. If a sentence is false you have to say that the sentence is "falso". If a sentence is true, you have to say that the sentence is "cierto". Then you have to correct the false sentence in Spanish. So you must write the right version.

For example:

1. Falso porque sí invitaron a mucha gente a la fiesta de Margarita y Roberto porque ellos conocen a muchas personas.

3. Falso porque Margarita y Roberto decidieron no celebrar el décimo aniversario.

5. Falso porque Josefina no se divirtió mucho en la fiesta.