Q.1 Even though I had planned to go skiing with my friends, I had to __________ at thelast moment because of an injury.Select the most appropriate option to complete the […]
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![Q.60 In a mass spectrometer, a deuteron with kinetic energy 17 MeV enters a uniform magnetic field of 2.4 T with its velocity perpendicular to the field. The deuteron moves in a circular path in the magnetic field. The radius of its path in the magnetic field (correct to two decimal places) is _______ cm. [mass of deuteron is 3.34 × 10⁻²⁷ kg, 1 MeV = 1.6 × 10⁻¹³ J and e = 1.6 × 10⁻¹⁹ C]](https://www.letstalkacademy.com/wp-content/uploads/2025/12/slide_60-12.jpg)
IIT JAM Biotechnology Previous Year Question Paper 2017 Video Solution
Deuteron Radius in Mass Spectrometer
Q.60 In a mass spectrometer, a deuteron with kinetic energy 17 MeV enters a uniform magnetic field of 2.4 T with its velocity perpendicular to the field. The deuteron moves […]
![Q.59 An X-ray tube operates at 30 kV. If one electron converts 10% of its energy into a photon at first collision, then the wavelength of the photon (correct to two decimal places) is _______ Å. [h = 4.14 × 10⁻¹⁵ eV·s, c = 3 × 10⁸ m s⁻¹ and e = 1.6 × 10⁻¹⁹ C]](https://www.letstalkacademy.com/wp-content/uploads/2025/12/slide_59-12.jpg)
IIT JAM Biotechnology Previous Year Question Paper 2017 Video Solution
X-Ray Tube Wavelength Calculation
Q.59 An X-ray tube operates at 30 kV. If one electron converts 10% of its energy into a photon at first collision, then the wavelength of the photon (correct to […]
IIT JAM Biotechnology Previous Year Question Paper 2017 Video Solution
Using word TRICK has five distinct letters
Q.58 Using the letters in the word TRICK a new word containing five distinct letters is formed such that T appears in the middle. The number of distinct arrangements is […]
IIT JAM Biotechnology Previous Year Question Paper 2017 Video Solution
Magnitude of a – b for Unit Vectors at π/3 Angle
Q.57 If a and b are unit vectors and the angle between them is π/3, then the magnitude of a − b is _______. Introduction Finding the magnitude of |a−b| for unit vectors with angle […]
IIT JAM Biotechnology Previous Year Question Paper 2017 Video Solution
Permanganate Ion Reduction by Ferrous Ion in Acidic Solution
Q.56 In acidic solution, permanganate ion is reduced by ferrous ion. The number of electrons involved in the reduction of permanganate ion is _______. The number of electrons involved in […]
IIT JAM Biotechnology Previous Year Question Paper 2017 Video Solution
Fluorescence Lifetime Calculation in 2N H₂SO₄
Q.55 In 2 N H₂SO₄, an organic compound shows fluorescence with quantum yield, ϕ = 0.42 and fluorescence rate constant, kf = 5.25 × 10⁷ s⁻¹. The observed fluorescence lifetime […]
IIT JAM Biotechnology Previous Year Question Paper 2017 Video Solution
How Many Ribosomes Translate Single Bacterial mRNA
Q.54 In bacteria, a ribosome synthesizes a protein containing 300 amino acids from mRNA in 20 seconds. If the average lifetime of mRNA is 2 minutes, the number of ribosomes […]
![Q.53 The relationship between log(MW) [where MW – molecular weight in kDa] of a mixture of protein standards and their retention factors (Rf) obtained from native-PAGE is log₁₀(MW) = −2Rf + 3. If the measured retention factor for a protein with 180 amino acids is 0.5, then the number of identical monomers in the protein is _______.](https://www.letstalkacademy.com/wp-content/uploads/2025/12/slide_53-12.jpg)
IIT JAM Biotechnology Previous Year Question Paper 2017 Video Solution
Calculating Protein Oligomer Number from Native-PAGE Rf and Amino Acids
Q.53 The relationship between log(MW) [where MW – molecular weight in kDa] of a mixture of protein standards and their retention factors (Rf) obtained from native-PAGE is log₁₀(MW) = −2Rf […]
IIT JAM Biotechnology Previous Year Question Paper 2017 Video Solution
Enzyme Inhibition Ki Calculation
Q.52 The Kₘ and kcat of an enzyme are 4 mM and 0.1 μM h⁻¹ respectively. In the presence of 1.5 mM inhibitor, the Kₘ and kcat of the enzyme […]
