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The driver of a car travelling at a speed of $30 \text{ m/s}$ towards a hill sounds a horn of frequency $600 \text{ Hz}$. If the velocity of sound in air is $330 \text{ m/s}$, the frequency of reflected sound as heard by the driver is:
Identify 'X' in the following reaction.
Match the following columns and select the correct option: Column-I (a) Floating Ribs (b) Acromion (c) Scapula (d) Glenoid cavity Column-II (i) Located between second and seventh ribs (ii) Head of Humerus (iii) Clavicle (iv) Do not connect with the sternum
Water-soluble pigments found in plant cell vacuoles are:
Which of the following are required for the dark reaction of photosynthesis? A: Light B: Chlorophyll C: CO2 D: ATP E: NADPH Choose the correct answer from the options given below:
Some dividing cells exit the cell cycle and enter the vegetative inactive stage. This is called the quiescent stage (G0). This process occurs at the end of:
Transfer of an ovum collected from a donor into the fallopian tube of another female is called:
Which of the following is hormone-releasing IUD?
The complex formed by a pair of synapsed homologous chromosomes is called:
Identify the correct sequence of events during Prophase I of meiosis: (a) Condensation of chromatin (b) Terminalisation of chiasmata (c) Synapsis of homologous chromosomes (d) Crossing over (e) Dissolution of synaptonemal complex
If the apical bud has been removed then we observe:
Cells in $G_0$ phase:
Match the following sexually transmitted diseases (Column - I) with their causative agent (Column - II) and select the correct option. Column I A. Gonorrhoea B. Syphilis C. Genital Warts D. AIDS Column II i. HIV ii. Neisseria iii. Treponema iv. Human Papilloma Virus
Decreasing order of stability of $\text{O}_2$, $\text{O}_2^-$, $\text{O}_2^+$ and $\text{O}_2^{2-}$ is:
The EM wave with the shortest wavelength among the following is:
Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres.
Match the following hormones with their respective disease or disorder: (A) Insulin (B) Thyroxine (C) Corticoids (D) Growth Hormone (i) Addison’s disease (ii) Diabetes mellitus (iii) Acromegaly (iv) Goitre
Identify the wrong statements :
Identify the incorrect pair
A square current carrying loop is suspended in a uniform magnetic field acting in the plane of the loop. If the force on one arm of the loop is $\vec{F}$, the net force on the remaining three arms of the loop is