Download App

Newton’s Laws of Motion — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsNewton’s Laws of Motion5 Marks
Question
A reference frame attached to the earth:
  1. Is an inertial frame by definition.
  2. Cannot be an inertial frame because the earth is revolving around the sun.
  3. Is an inertial frame because Newton's laws are applicable in this frame.
  4. Cannot be an inertial frame because the earth is rotating about its axis.
✓

Answer

  1. Cannot be an inertial frame because the earth is revolving around the sun.
  1. Cannot be an inertial frame because the earth is rotating about its axis.

Explanation:

A reference frame attached to the earth cannot be an inertial frame because the earth is revolving around the sun and also rotating about its axis.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "5 Marks Questions" from Newton’s Laws of Motion→Newton’s Laws of Motion — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

A metre stick weighing 240g is pivoted at its upper end in such a way that it can freely rotate in a vertical plane through this end (figure). A particle of mass 100g is attached to the upper end of the stick through a light string of length 1m. Initially, the rod is kept vertical and the string horizontal when the system is released from rest. The particle collides with the lower end of the stick and sticks there. Find the maximum angle through which the stick will rise.

→
  1.  
  1. State the principle on which a potentiometer works. How can a given potentiometer be made more sensitive?
  2. In the graph shown below for two potentiometers, state with reason which of the two potentiometers, A or B, is more sensitive.
  1. Two metallic wires, P1 and P2 of the same material and same length but different cross-sectional areas, A1 and A2 are joined together and connected to a source of emf. Find the ratio of the drift velocities of free electrons in the two wires when they are connected (i) in series, and (ii) in parallel.
→
How many is energy states are present in one mole of sodium vapour? Are they all filled in normal conditions? "How many 3s energy states are present in one mole of sodium vapour? Are they all filled in normal conditions?
→
  1. Draw a labelled ray diagram to obtain the real image formed by an astronomical telescope in normal adjustment position. Defineits magnifying power.
  2. You are given three lenses of power 0.5 D, 4 D and 10 D to design a telescope.
  1. Which lenses should he used as objective and eyepiece? Justify your answer.
  2. Why is the aperture of the objective preferred to be large?
→
Briefly explain the principle of a capacitor. Derive an expression for the capacitance of a parallel plate capacitor, whose plates are separated by a dielectric medium.
→
A point object 'O' is kept in a medium of refractive index n1 in front of a convex spherical surface of radius of curvature R which separates the second medium of refractive index n2 from the first one, as shown in the figure.
  1. Draw the ray diagram showing the image formation and deduce the relationship between the object distance and the image distance in terms of n1, n2 and R.
  2. When the image formed above acts as a virtual object for concave spherical, surface separating the medium n2 from n1 (n2> n1), draw this ray diagram and write the similar (similar to (a) relation. Hence obtain the expression for the lens maker's formula.
→
State ampere's law. Obtain expression for magnetic field at a point located (i) externally (ii) internally due to a long cylindrical solid current carrying conductor.###Calculate the value of magnetic field at points $(r>a)$ and $(r
→
State Ampere's law. Using this law, calculate the magnitude of magnetic field due to long and straight current carrying conductor and also draw the graph.
→
Two parallel wires seprated by a distance of 10cm carry currents of 10A and 40A along-the same direction. Where should a third current be placed so that it experiences no magnetic force?
→
Three bulbs, each with a resistance of $180\Omega,$ are connected in parallel to an ideal battery of emf 60V. Find the current delivered by the battery when.
(a) all the bulbs are switched on, (b) two of the bulbs are switched on and (c) only one bulb is switched on.
→