Once the wave is produced, the frequency remains constant. Hence speed V of the wave is directly proportional to the wavelength of the...

2019PPP1Q33 Ans: Option B 2007PPP1Q28 Ans: Option B Torch lamp or bulb is a non-ohmic conductor . The V-I graph has an increasing...

Below are some examples of questions that involve finding the resultant force due to two or three forces. Below are the questions in the...