Question 13 MarksState merits and demerits of paralle connection of resistors.Answerસ્વપ્રયત્નView full question & answer→
Question 23 MarksAn object is placed at $27 \ cm$ in front of a concave mirror of focal lengh $18 \ cm$. At what distance from the mirror should a screen be placed in order to obtain a sharp image?Answerસ્વપ્રયત્નView full question & answer→
Question 33 Markswhat is refrection of light? Write the laws of reaction of light. Answerસ્વપ્રયત્નView full question & answer→
Question 43 Marksexplain : menstruation ( menstrual cycle)Answerસ્વપ્રયત્નView full question & answer→
Question 53 MarksExplain the reproductive parts of a flower and explain the types of flowers on that basis.Answerસ્વપ્રયત્નView full question & answer→
Question 63 MarksExplain human brain with the functions of its various parts.Answerસ્વપ્રયત્નView full question & answer→
Question 83 MarksHow is the extraction of metals at the top of reactivity series carried out? Explain with an example. Answerસ્વપ્રયત્નView full question & answer→
Question 93 MarksWhat is combination reaction? Explain giving chemical equation.Answerસ્વપ્રયત્નView full question & answer→