HSSC TGT Science Date 29/4/2023 Evening ShiftTotal Questions: 10091. If E =100sin (100t) Volt and I = 100sin(100t + pi / 3) are the instantaneous values of voltage and current, then the rms values of voltage and current are respectively:(a) 70.7V and 70.7mA(b) 141.4V and 141.4A(c) 70.7V and 70.7A(d) 141.4V and 141.4mA(e) UnattemptedCorrect Answer: (a) 70.7V and 70.7mA92. Which hormone is secreted by the ovary in the later phase of pregnancy?(a) Thyroxin(b) Relaxin(c) Prolactin(d) Adrenaline(e) UnattemptedCorrect Answer: (b) Relaxin93. At constant temperature, the pressure of a fixed amount of gas varies inversely with its volume. This is known as:(a) Charles' law(b) Avogadro's law(c) Gay-Lussac's law(d) Boyle's law(e) UnattemptedCorrect Answer: (d) Boyle's law94. Which theory attempts to explain to us the origin of the universe?(a) Speciation theory(b) Natural selection(c) Big Bang theory(d) Mass theory(e) UnattemptedCorrect Answer: (c) Big Bang theory95. Which of the following radiations has the least wavelength?(a) γ-rays(b) X-rays(c) α-rays(d) β-rays(e) UnattemptedCorrect Answer: (a) γ-rays96. Fehling solution A is:(a) Aqueous copper sulphate(b) Alkaline potassium chloride(c) Ammoniacal silver nitrate(d) Rochelle salt(e) UnattemptedCorrect Answer: (a) Aqueous copper sulphate97. Restriction enzyme belongs to a larger class of enzymes called:(a) Lactases(b) Amylases(c) Nucleases(d) None of the above(e) UnattemptedCorrect Answer: (c) Nucleases98. Discontinuously synthesized fragments are later joined by the enzyme:(a) Amylase(b) DNA ligase(c) Isomerase(d) Lipase(e) UnattemptedCorrect Answer: (b) DNA ligase99. ____ is called washing soda.(a) Na₂CO₃.10H₂O(b) Na₂CO₃.H₂O(c) Na₂CO₃.4H₂O(d) Na₂CO₃.5H₂O(e) UnattemptedCorrect Answer: (a) Na₂CO₃.10H₂O100. The Microsporangia develop further and becomes:(a) Tapatum(b) Endodermis(c) Pollen sac(d) Receptacle(e) UnattemptedCorrect Answer: (c) Pollen sacSubmit Quiz« Previous12345678910
