Define Hypothesis?

A hypothesis is a proposed explanation or prediction based on limited evidence, which can be tested through experimentation or observation. In scientific research, a hypothesis is usually formulated before conducting an experiment and serves as the basis for testing whether certain factors or variables influence an outcome.

There are two main types of hypotheses:

  1. Null Hypothesis (H₀): This suggests that there is no effect or relationship between variables. It is often the hypothesis that researchers seek to disprove or reject.

  2. Alternative Hypothesis (H₁ or Ha): This posits that there is a significant effect or relationship between variables, and it is what researchers typically aim to support through their experiments.

Related Questions:

  1. Define the following branches of physics:
  2. Define the terms theory and law. Also, give two examples of each.
  3. Kinematics-mcq
  4. Q.1 How does physics play an important role in our life?
  5. Q.9 What precautions should be kept in mind while taking measurements using a measuring cylinder?
  6. Q.10 Why do we need to consider significant digits in measurements?
  7. Q11. How random error can be reduced?
  8. Q12. Differentiate between precision and accuracy.
  9. Q.1 Define Physics. Describe its revolutionary role in technology.
  10. Q2. List with brief descriptions of different branches of physics.
  11. Q1. Write the following numbers in scientific notations.
  12. Q2. Express the followings measurements using prefixes.
  13. Q3. If a boy has age of 15 years 2 months and 10 days, convert his age in a. seconds b. milliseconds c. mega seconds
  14. Q4. How many kilometers are there in 25 micrometers?
  15. Q5. What is pitch and least count of: a. Vernier calipers if the smallest division on the main scale is 1 mm and total divisions on the vernier scale are 20. b. Screw gauge if the smallest division on its main scale is 0.5 mm and its movable scale has 50 divisions.
  16. Q6. Look at the measurement of vernier calipers:
  17. Q7. Look at the figure of screw gauge, let a small steel ball is place between its thimble and anvil then:
  20. SEPARATION TECHNIQUES