pls give me the soln of mock test 1 for AIEEE of physics q 17 to 19

To provide a comprehensive solution to questions 17 to 19 from a mock test for AIEEE in Physics, let's break down each question step by step. While I don’t have access to the specific questions, I can guide you through common types of problems that might appear in such tests, focusing on key concepts and problem-solving strategies.

Question 17: Mechanics - Kinematics

Suppose this question involves a projectile motion scenario. For example, if a ball is thrown at an angle with a certain initial velocity, you would typically need to find the maximum height or the range of the projectile.

Steps to Solve:

• Identify the given values: Initial velocity (u), angle of projection (θ), and acceleration due to gravity (g).
• Use the formulas:
  • Maximum height (H) = (u² * sin²θ) / (2g)
  • Range (R) = (u² * sin(2θ)) / g
• Substitute the values: Plug in the known values to calculate the desired quantity.

Question 18: Electricity - Ohm's Law

This question might involve calculating the resistance in a circuit or finding the current flowing through a resistor. Ohm's Law is fundamental here.

Approach to the Problem:

• Recall Ohm's Law: V = I × R, where V is voltage, I is current, and R is resistance.
• Identify known quantities: If you know the voltage across a resistor and its resistance, you can find the current.
• Rearrange the formula: To find current, use I = V / R.
• Calculate: Substitute the known values to find the current.

Question 19: Waves - Sound Waves

This question could involve the speed of sound in different media or the Doppler effect. Understanding the properties of waves is crucial here.

Key Concepts to Consider:

• Speed of Sound: The speed of sound varies in different media (air, water, solids). The formula is v = f × λ, where v is speed, f is frequency, and λ is wavelength.
• Doppler Effect: This effect describes the change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.
• Example Calculation: If a source of sound is moving towards an observer, the observed frequency increases. Use the formula: f' = f (v + vo) / (v - vs), where f' is the observed frequency, vo is the speed of the observer, and vs is the speed of the source.

By applying these principles and methods, you can tackle similar questions effectively. If you have the specific questions or numerical values, feel free to share them, and I can help you work through those examples in detail!