PHYSICS QUIZ

North of observer

East of observer

South of observer

West of observer

All of these

When the star

When the angle at the star of the spherical triangle is 90°

When the star momentarily moves vertically

1.00 mm

0.1 mm

0.5 mm

1.1 mm

W23°30’N

S113°30’N

N66°30’W

N23°30’W

vertical curve

reverse curve

compound curve

transition curve

always zero

always additive

always subtractive

sometimes additive and sometimes subtractive

Celestial horizon

All of these

True horizon

Rational horizon

Focal length of the camera

Percentage of overlap

Overall size of the photo graphs

All listed here

quicker and less tedious for large number of intermediate sights

None of these

less accurate than rise and fall method

more accurate than rise and fall method

only (iii)

both (i) and (iv)

only (i)

both (ii) and (iii)