Question

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Answer 1

Explanation:

Curd is obtained by coagulating milk in a sequential process called curdling. It can be a final dairy product or the first stage in cheesemaking. The coagulation can be caused by adding rennet or any edible acidic substance such as lemon juice or vinegar, and then allowing it to coagulate.

Answer 2

$solution \:$

a) We have,

Object distance, u = -60cm focal

Length of the concave lens, f = -30cm

Using lens Formula,

$\frac{1}{v} - \frac{1}{u} = \frac{1}{f} \\ = > \frac{1}{v} - \frac{1}{( - 60)} = \frac{1}{( - 30)} \\ = > \frac{1}{v} = \frac{ - 1}{30} - \frac{1}{60} \\ = > \frac{1}{v} = \frac{ - 3}{60}$

v = -20 cm

Therefore, the image will be formed at a distance of 20cm in front of the lens.

B)

1) Natural of the image is virtual.

2) The position of the image is between F1 and optical center 0.

3) Size of the image is diminished.

4) The image is erect.