Physics

NEET PHYSICS TEST ARRANGEMENT: QUESTION:   The dimensional formula of Solar constant is                      A)     M 1 L o T -3                                                                    B)     M 1 L 1 T -3                    C)      M 0 L 0 T 3                                                                        D)    M 1 L 1 T -2         ANSWER :                                                                                                     An swer (A)     SOLUTION:         Solar Constant:                         The solar constant is the total radiation received from the Sun per unit time per unit area on a theoretical surface perpendicular to the Sun’s rays and at Earth’s mean distance from the Sun. OR                                                          

  SCREW GAUGE: SCREW GAUGE FORMULA: PITCH: Pitch is the linear distance traveled by the screw head in a successful rotation of the screw. While rotating the thimble, the spindle advances towards the anvil. Give the thimble seven complete rotations, that is move the circular scale by 100 calibrations seven times and note the distance moved in the pitch scale. NUMERICAL -1 The main scale of a screw gauge has 1/2 mm mark,for complete rotation screw advances by 1/2 mm.Read the screw gauge in which the markings are shown below. NUMERICAL -2 The main scale of a screw gauge has 1/2 mm mark,for complete rotation screw advances by 1/2 mm.Read the screw gauge in which the markings are shown below.