F2 Workbook 11.3, 11.4 Answers

Section 11.3

A. Concept checking     p.67

1.     True

2.     False

3.     False

4.     False

5.     True

B. Matching   p.67

(a)    Telescope; i, iv

(b)    Binoculars; i

(c)    Hand lens; ii

(d)   Light microscope; iii

Section 11.4

A. Multiple choice p.68

1.     B

2.     D

3.     A

4.     A

5.     D

B. Fill in the blanks       p.70

(a)    (i)     near

        (ii)    thin

        (iii)   short

        (iv)   convex

(b)    (i)     certain colours

        (ii)    cones

(c)    (i)     cataracts

        (ii)    artificial lens

(d)   (i)     distant

        (ii)    thick

        (iii)   long

        (iv)   concave

C. Questions   p.70

1.     (a)    (i)     Diagram I

                (ii)    Diagram II

        (b)  

        (c)    (i)     No, he does not need any lens.

                (ii)    Yes, he needs a suitable convex lens.

                (iii)

                  

     

                                        (or other reasonable answers)