Question

Please answer this question
I will mark you brainlist ​

Answer 1

Answer:

here's your answer

Explanation:

1. photometer

2. sundial,water clock,sand clock, atomic clock

3.The battery sends electricity to the quartz crystal through an electronic circuit. The quartz oscillator vibrates quickly and with precise frequency in response to the electronic charge. The circuit counts the vibrations and generates regular electric pulses of one per second.

2a}A plane angle is a measurement around a point in 2D object, whereas solid angles are for 3D objects. The angle of a triangle is a plane angle, whereas the angle made by the corner of a room is solid.

b}45Degrees

Answer 2

Answer:

1. (a) Photometer

(b) Sundial, Water clock, Sand clock and Atomic clock

(c) The battery sends electricity to the quartz crystal through an electronic circuit. The quartz oscillator vibrates quickly and with precise frequency (32,768 times/second) in response to the electronic charge. The circuit counts the vibrations and generates regular electric pulses of one per second.

2. (a) A plane angle is a measurement around a point in 2D object, whereas solid angles are for 3D objects. The angle of a triangle is a plane angle, whereas the angle made by the corner of a room is solid.

(b) 45 degrees