Question
Define : Isogonic line, agonic line isoclinic line.
✓
Answer
Isogonic lines: A line which joins all the places on earth, having same angle of declination is called isogonic line.
Agonic line: A line which joins all the places on earth, having zero angle of declination is called agonic line.
Isoclinic line : A line joining all the places on globe, having same angle of dip or inclination is called isoclinic line.
Agonic line: A line which joins all the places on earth, having zero angle of declination is called agonic line.
Isoclinic line : A line joining all the places on globe, having same angle of dip or inclination is called isoclinic line.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Explain the term pitch. How are they determined?
The change in velocity of a motor bike is 54 kmlr 1 in one minute. Calculate its acceleration in (a) $ms ^{-2}$ (b) $kmh ^{-2}$.
→What is ocean energy? Explain in brief.
How does the acceleration produced by a given force depend on the mass of the body? Draw a graph to show it.
Describe three ways for the efficient use of energy.
A weather forecasting plastic balloon of volume $15 m^3$ contains hydrogen of density $0.09 kgm - s$. The volume of equipment carried by the balloon is negligible compared to its own volume. The mass of the empty balloon is 7.15 . kg . The balloon is floating in air of density $1.3 kgm - s$.
(1) Calculate the mass of hydrogen in balloon.
(2) Calculate the mass of hydrogen and the balloon.
(3) If the mass of equipment is $x kg$, write down the total mass of hydrogen, the balloon and the equipment,
(4) Calculate the mass of air displaced by balloon.
(5) Using the law of floatation, calculate the mass of equipment.
→(1) Calculate the mass of hydrogen in balloon.
(2) Calculate the mass of hydrogen and the balloon.
(3) If the mass of equipment is $x kg$, write down the total mass of hydrogen, the balloon and the equipment,
(4) Calculate the mass of air displaced by balloon.
(5) Using the law of floatation, calculate the mass of equipment.
State two advantages and two limitations of Hydel Power.
Interpret the following graph:
Draw a neat and labeled ray diagram of a simple periscope. Give two uses of a periscope.
At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to the size of the object.