Diagnostic Imaging

X-Ray 08 was an international maritime defense exercise conducted by the Indian Navy in 2008, involving multiple countries.

Lasers produce electromagnetic radiation (light). In surgical applications, the electromagnetic waves are focused to cut or cauterize tissue.

This is the correct answer. An MRI (or magnetic resonance imaging) scan is a radiology technique that uses magnetism, radio waves, and a computer to produce images of body structures.

PET (Positron Emission Tomography) imaging is a nuclear medicine technique that uses radiotracers to measure metabolic processes and blood flow, including cerebral blood volume.

PET scans use radiotracers, which are isotopes of elements like carbon, nitrogen, or oxygen that are naturally found in the body. These tracers allow for the visualization of metabolic processes in living tissue.

X-ray crystallography is a tool used for identifying the atomic and molecular structure of a crystal, in which the crystalline atoms cause a beam of incident X-rays to diffract into many specific directions. By measuring the angles and intensities of these diffracted beams, a crystallographer can produce a three-dimensional picture of the density of electrons within the crystal. From this electron density, the mean positions of the atoms in the crystal can be determined, as well as their chemical bonds, their disorder and various other information.

Ultrasonic waves are used in sonography for the mapping of body organs. The Ultrasonic waves that are sent inside the body are reflected from the different parts by creating the echo. They are more useful and less harmful than radiation.

Electrocardiography is a medical diagnostic

techniques, ultrasonic waves are used to construct the image of the heart, for

monitoring a nuclear reactor.

Ultrasound can be used in 

The options in the question are given unnecessarily. It can be a direct question.
Below are the applications of ultrasound.

• Ultrasound has been used in a variety of clinical settings, including obstetrics and gynecology, cardiology and cancer detection. The main advantage of ultrasound is that certain structures can be observed without using radiation. Ultrasound can also be done much faster than X-rays or other radiographic techniques. 
• Ultrasound is well known to have a significant effect on the rate of various processes in the food industry. Using ultrasound, full reproducible food processes can now be completed in seconds or minutes with high reproducibility, reducing the processing cost, simplifying manipulation and work-up, giving higher purity of the final product, eliminating post-treatment of waste water and consuming only a fraction of the time and energy normally needed for conventional processes. Several processes such as freezing, cutting, drying, tempering, bleaching, sterilization, and extraction have been applied efficiently in the food industry. The advantages of using ultrasound for food processing, includes: more effective mixing and micro-mixing, faster energy and mass transfer, reduced thermal and concentration gradients, reduced temperature, selective extraction, reduced equipment size, faster response to process extraction control, faster start-up, increased production, and elimination of process steps. Food processes performed under the action of ultrasound are believed to be affected in part by cavitation phenomena and mass transfer enhancement. 
• Ultrasound is used in the synthesis of nanostructured materials.
• Devices limited to low ultrasonic frequencies, have a number of industrial applications, including drying, ultrasonic cleaning, and injection of fuel oil into burners. 

A complete blood count (CBC) is a test panel requested by a doctor or other medical professional that gives information about the cells in a patient's blood. It is the most commonly performed blood tests in medicine, as they can provide an overview of a patient's general health status. 

Magnetic Resonance Imaging (MRI) uses strong magnetic fields and non-ionizing radio waves to generate detailed images of internal body structures. Unlike X-rays and Computed Tomography (CT) scans, MRI does not expose the patient to potentially harmful ionizing radiation, making it the safest imaging technique among the choices for cancer detection.

The study of tissue is known as histology or, in connection with disease, histopathology. The tissues are studied by the use of paraffin block in which tissue is embedded and then sectioned, the histological stain and then observed under the microscope. Therefore, the correct answer is option D.

Answer is D.

Technique of echocardiography is based on reflection property of ultrasonic waves.
An echocardiogram (also called an echo) is a type of ultrasound test that uses high-pitched sound waves that are sent through a device called a transducer. The device picks up echoes of the sound waves as they bounce off the different parts of our heart. These echoes are turned into moving pictures of our heart that can be seen on a video screen.